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401. Georgia Tracts

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Georgia Tracts represents the U.S. Census tracts and block numbering areas (BNA) of Georgia. Environmental Systems Research Institute, Inc. (ESRI).

402. Georgia ZIP Code Areas

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Georgia ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a ... Environmental Systems Research Institute, Inc. (ESRI).

403. Germany Five-Digit Zip Code Areas (PLZgrenzen)

Polygon Harvard University Restricted content
1999. ESRI Geoinformatik GmbH (ESRI Germany), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). There are no official zip code areas in Germany. Zip codes (Postleitzahl, PLZ) are related only to streets but are organized into the five-digit zi... Environmental Systems Research Institute, Inc. (ESRI).

404. Germany One-Digit Zip Code Zones (PLZgrenzen)

Polygon Harvard University Restricted content
1999. ESRI Geoinformatik GmbH, Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). There are no official zip code areas in Germany. Zip codes are related only to streets but the first digit of their zip codes are organized into te... Environmental Systems Research Institute, Inc. (ESRI).

405. Germany Two-Digit Zip Code Regions (PLZgrenzen)

Polygon Harvard University Restricted content
1999. ESRI Geoinformatik GmbH, Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). There are no official zip code areas in Germany. Zip codes are related only to streets but the first two digits of their zip codes are organized in... Environmental Systems Research Institute, Inc. (ESRI).

406. GINI Coefficient for 210 Constituencies in Kenya, 1999

Polygon Stanford University Public content
1999. Kenya. Central Bureau of Statistics and Kenya. Ministry of Planning and National Development. This polygon shapefile depicts the average inequality of per capita expenditures (also known as the GINI Index) for 210 constituencies in Kenya for... Kenya. Central Bureau of Statistics.

407. Global GIS : Oil and gas fields

Point Harvard University Public content
1999. American Geological Institute, Geological Survey (U.S.), Petroconsultants International Data Corp., and Environmental Systems Research Institute (Redlands, Calif.). This coverage contains points that describe centerpoint locations of and primary commodity produced by oil and gas fields. A fundamental task in th... American Geological Institute.

408. Grid Boundaries (200 m): San Mateo County, California, 1999

Polygon Stanford University Public content
1999. County of San Mateo Information Services Department. This polygon shapefile depicts 200 meter grid boundaries for the County of San Mateo, California. This layer is part of a collection of GIS data fo... County of San Mateo Information Services Department.

409. Grid Boundaries (800 m): San Mateo County, California, 1999

Polygon Stanford University Public content
1999. County of San Mateo Information Services Department. This polygon shapefile depicts 800 meter grid boundaries for the County of San Mateo. This layer is part of a collection of GIS data for San Mateo ... County of San Mateo Information Services Department.

410. Hawaii Block Groups

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Hawaii Block Groups represents the U.S. Census block groups of Hawaii. Environmental Systems Research Institute, Inc. (ESRI).

411. Hawaii Major Roads

Line Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Hawaii Major Roads represents interstate, U.S., and state highways and other major thoroughfares within Hawaii. Environmental Systems Research Institute, Inc. (ESRI).

412. Hawaii Major Roads 2002

Line Princeton University Restricted content
1999. Geographic Data Technology, Inc. (GDT). Hawaii Major Roads represents interstate, U.S., and state highways and other major thoroughfares within Hawaii. Environmental Systems Research Institute, Inc. (ESRI).

413. Hawaii Tracts

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Hawaii Tracts represents the U.S. Census tracts and block numbering areas (BNA) of Hawaii. Environmental Systems Research Institute, Inc. (ESRI).

414. Hawaii ZIP Code Areas

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Hawaii ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a f... Environmental Systems Research Institute, Inc. (ESRI).

415. Highly Erodible Watersheds: Russian River Basin, California

Polygon Stanford University Restricted content
1999. Circuit Rider Productions. This polygon shapefile represents the highly-erodible watersheds of the Russian River basin in California These data have been derived from data or... Circuit Rider Productions.

416. Hong Kong contour lines, 1999

Line Princeton University Restricted content
1999. LAND INFO Worldwide Mapping, LLC. Lines representing 50-meter elevation contours in Hong Kong for 1999. The data were extracted from a map by the Survey and Mapping Office of the Ho...

417. Hong Kong land cover, 1999

Polygon Princeton University Restricted content
1999. LAND INFO Worldwide Mapping, LLC. Polygons representing land cover in Hong Kong for 1999. The data were extracted from a map by the Survey and Mapping Office of the Hong Kong Lands ...

418. Hong Kong marine waters, 1999

Polygon Princeton University Restricted content
1999. LAND INFO Worldwide Mapping, LLC. Polygons representing marine waters in Hong Kong for 1999. The data were extracted from a map by the Survey and Mapping Office of the Hong Kong Lan...

419. Hong Kong spot heights, 1999

Point Princeton University Restricted content
1999. LAND INFO Worldwide Mapping, LLC. Points representing elevations in Hong Kong for 1999. The data were extracted from a map by the Survey and Mapping Office of the Hong Kong Lands De...

420. Hong Kong transportation routes, 1999

Line Princeton University Restricted content
1999. LAND INFO Worldwide Mapping, LLC. Lines representing roads, railways, runways, paths, ferries, and surface waters in Hong Kong for 1999. Multiple types of roads and railways are als...

421. HUSCO 1790-1999

Collection Stanford University Public content
1999. Earle, Carville, Heppen, John, Otterstrom, Samuel, and Louisiana State University (Baton Rouge, La.) Department of Geography and Anthropology. "Contains ArcView shapefile format county boundary files for the contiguous United States from each decade from 1790 through 1990 (also 1999). File... Geoscience.

422. Hydrography, New York State, 1999

Line Cornell University Public content
1999. U.S. Geological Survey. The data set portrays the polygon and line water features of New York State. The file was produced by joining the individual State hydrography laye...

423. Idaho Block Groups

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Idaho Block Groups represents the U.S. Census block groups of Idaho. Environmental Systems Research Institute, Inc. (ESRI).

424. Idaho Major Roads

Line Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Idaho Major Roads represents interstate, U.S., and state highways and other major thoroughfares within Idaho. Environmental Systems Research Institute, Inc. (ESRI).

425. Idaho Major Roads 2002

Line Princeton University Restricted content
1999. Geographic Data Technology, Inc. (GDT). Idaho Major Roads represents interstate, U.S., and state highways and other major thoroughfares within Idaho. Environmental Systems Research Institute, Inc. (ESRI).

426. Idaho Tracts

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Idaho Tracts represents the U.S. Census tracts and block numbering areas (BNA) of Idaho. Environmental Systems Research Institute, Inc. (ESRI).

427. Idaho ZIP Code Areas

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Idaho ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a fi... Environmental Systems Research Institute, Inc. (ESRI).

428. Illinois Block Groups

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Illinois Block Groups represents the U.S. Census block groups of Illinois. Environmental Systems Research Institute, Inc. (ESRI).

429. Illinois Major Roads

Line Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Illinois Major Roads represents interstate, U.S., and state highways and other major thoroughfares within Illinois. Environmental Systems Research Institute, Inc. (ESRI).

430. Illinois Major Roads 2002

Line Princeton University Restricted content
1999. Geographic Data Technology, Inc. (GDT). Illinois Major Roads represents interstate, U.S., and state highways and other major thoroughfares within Illinois. Environmental Systems Research Institute, Inc. (ESRI).

431. Illinois Tracts

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Illinois Tracts represents the U.S. Census tracts and block numbering areas (BNA) of Illinois. Environmental Systems Research Institute, Inc. (ESRI).

432. Illinois ZIP Code Areas

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Illinois ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a... Environmental Systems Research Institute, Inc. (ESRI).

433. Index Contours, 200 scale

Line University of California, Berkeley Public content
1999. Towill Incorporated. Elevation contours corresponding to digital orthophotographs rectified to ground control at accuracies of 200 and 400 scale covering entire Marin C... San Francisco (Calif.). Towill Incorporated.

434. Index Contours, 200 scale

Line University of California, Berkeley Public content
1999. Towill Incorporated. Elevation contours corresponding to digital orthophotographs rectified to ground control corresponding to 200 scale mapping (1 inch = 200 feet) cov... San Francisco (Calif.). Towill Incorporated.

435. Indiana Block Groups

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Indiana Block Groups represents the U.S. Census block groups of Indiana. Environmental Systems Research Institute, Inc. (ESRI).

436. Indiana Major Roads

Line Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Indiana Major Roads represents interstate, U.S., and state highways and other major thoroughfares within Indiana. Environmental Systems Research Institute, Inc. (ESRI).

437. Indiana Major Roads 2002

Line Princeton University Restricted content
1999. Geographic Data Technology, Inc. (GDT). Indiana Major Roads represents interstate, U.S., and state highways and other major thoroughfares within Indiana. Environmental Systems Research Institute, Inc. (ESRI).

438. Indiana Tracts

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Indiana Tracts represents the U.S. Census tracts and block numbering areas (BNA) of Indiana. Environmental Systems Research Institute, Inc. (ESRI).

439. Indiana ZIP Code Areas

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Indiana ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a ... Environmental Systems Research Institute, Inc. (ESRI).

440. Innaanganeq (Kap York) to Kangaarsuk (Kap Atholl) (Raster Image)

Raster Stanford University Restricted content
1999. Land Info (Firm) and United States. Defense Mapping Agency. Georeferenced nautical chart. Map no. 38340 This map is part of a collection of scanned and georeferenced nautical charts produced by the National ... Land Info (Firm).

441. Interior contours, 200 scale

Line University of California, Berkeley Public content
1999. Towill Incorporated. Elevation contours corresponding to digital orthophotographs rectified to ground control corresponding to 200 scale mapping (1 inch = 200 feet) cov... San Francisco (Calif.). Towill Incorporated.

442. Interior contours, 400 scale

Line University of California, Berkeley Public content
1999. Towill Incorporated. Elevation contours corresponding to digital orthophotographs rectified to ground control corresponding to 400 scale mapping (1 inch = 400 feet) cov... San Francisco (Calif.). Towill Incorporated.

443. Iowa Block Groups

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Iowa Block Groups represents the U.S. Census block groups of Iowa. Environmental Systems Research Institute, Inc. (ESRI).

444. Iowa Major Roads

Line Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Iowa Major Roads represents interstate, U.S., and state highways and other major thoroughfares within Iowa. Environmental Systems Research Institute, Inc. (ESRI).

445. Iowa Major Roads 2002

Line Princeton University Restricted content
1999. Geographic Data Technology, Inc. (GDT). Iowa Major Roads represents interstate, U.S., and state highways and other major thoroughfares within Iowa. Environmental Systems Research Institute, Inc. (ESRI).

446. Iowa Tracts

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Iowa Tracts represents the U.S. Census tracts and block numbering areas (BNA) of Iowa. Environmental Systems Research Institute, Inc. (ESRI).

447. Iowa ZIP Code Areas

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Iowa ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a fiv... Environmental Systems Research Institute, Inc. (ESRI).

448. Jalalaqsi, 1999 (Scanned Map)

Raster Columbia University Restricted content
1999. United States. Defense Mapping Agency and East View Cartographic, Inc. Jalalaqsi is a scanned, georeferenced map of the city of Jalalaqsi, Somalia at a scale of 1:15,000. The Agency,.

449. Kansas Block Groups

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Kansas Block Groups represents the U.S. Census block groups of Kansas. Environmental Systems Research Institute, Inc. (ESRI).

450. Kansas Major Roads

Line Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Kansas Major Roads represents interstate, U.S., and state highways and other major thoroughfares within Kansas. Environmental Systems Research Institute, Inc. (ESRI).

451. Kansas Major Roads 2002

Line Princeton University Restricted content
1999. Geographic Data Technology, Inc. (GDT). Kansas Major Roads represents interstate, U.S., and state highways and other major thoroughfares within Kansas. Environmental Systems Research Institute, Inc. (ESRI).

452. Kansas Tracts

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Kansas Tracts represents the U.S. Census tracts and block numbering areas (BNA) of Kansas. Environmental Systems Research Institute, Inc. (ESRI).

453. Kansas ZIP Code Areas

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Kansas ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a f... Environmental Systems Research Institute, Inc. (ESRI).

454. Kelp Canopy: California, 1999

Polygon Stanford University Public content
1999. GIS Lab, California. Department of Fish and Game. Marine Resources Region. This polygon shapefile depicts kelp beds along the California coast, which are a critical habitat for many important sport and commercial species o... California. Department of Fish and Game. Marine Resources Region.

455. Kentucky Block Groups

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Kentucky Block Groups represents the U.S. Census block groups of Kentucky. Environmental Systems Research Institute, Inc. (ESRI).

456. Kentucky Major Roads

Line Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Kentucky Major Roads represents interstate, U.S., and state highways and other major thoroughfares within Kentucky. Environmental Systems Research Institute, Inc. (ESRI).

457. Kentucky Major Roads 2002

Line Princeton University Restricted content
1999. Geographic Data Technology, Inc. (GDT). Kentucky Major Roads represents interstate, U.S., and state highways and other major thoroughfares within Kentucky. Environmental Systems Research Institute, Inc. (ESRI).

458. Kentucky Tracts

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Kentucky Tracts represents the U.S. Census tracts and block numbering areas (BNA) of Kentucky. Environmental Systems Research Institute, Inc. (ESRI).

459. Kentucky ZIP Code Areas

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Kentucky ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a... Environmental Systems Research Institute, Inc. (ESRI).

460. King George Island to Clarence Island (Raster Image)

Raster Stanford University Restricted content
1999. Land Info (Firm) and United States. Defense Mapping Agency. Georeferenced nautical chart. Map No.: 29104 This map is part of a collection of scanned and georeferenced nautical charts produced by the National... Land Info (Firm).

461. Land Cover [Illinois] (1999-2000)

University of Illinois Public content
1999. United States Department of Agriculture, National Agricultural Statistics Services, Illinois Department of Agriculture, and Illinois Department of Natural Resources. In late 1999, the U. S. Department of Agriculture National Agricultural Statistics Service (NASS), the Illinois Department of Agriculture (IDA), an...

464. Landslide Activity Regions, Freshwater Creek Watershed, California, 1999

Polygon Stanford University Public content
1999. California Geological Survey and California. Division of Mines and Geology. This polygon shapefile represents regions of landslide activity within the Freshwater Creek watershed in Humboldt County, California at 1:24,000 sc... California Geological Survey.

465. Landslide Potential Coverage, Freshwater Creek Watershed, California, 1999

Polygon Stanford University Public content
1999. California Geological Survey and California. Division of Mines and Geology. This polygon shapefile represents relative landslide potential for the Freshwater Creek watershed in Humboldt County, California at 1:24,000 scale.... California Geological Survey.

466. Landslides, Freshwater Creek Watershed, California, 1999

Line Stanford University Public content
1999. California Geological Survey and California. Division of Mines and Geology. This line shapefile represents landslide activity within the Freshwater Creek watershed in Humboldt County, California at 1:24,000 scale. These dat... California Geological Survey.

468. Langfjorden, Stjernoysundet, & Altafjorden (Raster Image)

Stanford University Restricted content
1999. Land Info (Firm) and United States. National Imagery and Mapping Agency. Georeferenced nautical chart. Map No.: 43084 Historic paper maps can provide an excellent view of the changes that have occurred in the cultural an... Land Info (Firm).

469. Line Features of the Russian River Watershed, California, 1999

Line Stanford University Restricted content
1999. Circuit Rider Productions. This line shapefile features stream cross section data from the Russian River mainstem and describes 1999 contours, project limits, tree dripline, ... Circuit Rider Productions.

470. Louisiana Block Groups

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Louisiana Block Groups represents the U.S. Census block groups of Louisiana. Environmental Systems Research Institute, Inc. (ESRI).

471. Louisiana Major Roads

Line Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Louisiana Major Roads represents interstate, U.S., and state highways and other major thoroughfares within Louisiana. Environmental Systems Research Institute, Inc. (ESRI).

472. Louisiana Major Roads 2002

Line Princeton University Restricted content
1999. Geographic Data Technology, Inc. (GDT). Louisiana Major Roads represents interstate, U.S., and state highways and other major thoroughfares within Louisiana. Environmental Systems Research Institute, Inc. (ESRI).

473. Louisiana Tracts

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Louisiana Tracts represents the U.S. Census tracts and block numbering areas (BNA) of Louisiana. Environmental Systems Research Institute, Inc. (ESRI).

474. Louisiana ZIP Code Areas

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Louisiana ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of ... Environmental Systems Research Institute, Inc. (ESRI).

475. Luluabourg, 1999 (Scanned Map)

Raster Columbia University Restricted content
1999. United States. Defense Mapping Agency and East View Cartographic, Inc. Luluabourg is a scanned, georeferenced map of the city of Luluabourg, Democratic Republic of Congo at a scale of. National imagery and mapping agency,.

476. Maine Block Groups

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Maine Block Groups represents the U.S. Census block groups of Maine. Environmental Systems Research Institute, Inc. (ESRI).

477. Maine Major Roads

Line Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Maine Major Roads represents interstate, U.S., and state highways and other major thoroughfares within Maine. Environmental Systems Research Institute, Inc. (ESRI).

478. Maine Major Roads 2002

Line Princeton University Restricted content
1999. Geographic Data Technology, Inc. (GDT). Maine Major Roads represents interstate, U.S., and state highways and other major thoroughfares within Maine. Environmental Systems Research Institute, Inc. (ESRI).

479. Maine Tracts

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Maine Tracts represents the U.S. Census tracts and block numbering areas (BNA) of Maine. Environmental Systems Research Institute, Inc. (ESRI).

480. Maine ZIP Code Areas

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Maine ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a fi... Environmental Systems Research Institute, Inc. (ESRI).

481. Major Dams, New York State, 1999

Point Cornell University Public content
1999. U.S. Geological Survey. This map layer includes the locations of over 500 majors dams in New York State. The information in the map layer was provided by the U.S. Army Cor...

482. Major Roads of the United States, 1972-1999

Line Stanford University Public content
1999. Geological Survey (U.S.). This line shapefile portrays the major roads in the United States, Puerto Rico, and the U.S. Virgin Islands. The file was produced by joining the i... Geological Survey (U.S.).

483. Manhattan Businesses, 1999

Point Columbia University Restricted content
1999. infoUSA. New York City Manhattan Businesses, 1999 is a point theme representing business locations in Manhattan (New York County, NY) as of 1999. Includes a... infoUSA.

484. Manhattan Tax Lots, 1999

Polygon Columbia University Public content
1999. New York (City). Department of City Planning. Manhattan Tax Lots, 1999 is a polygon theme representing tax lots in New York County, NY as of 1999. This dataset represents a compilation of data... NYC Department of City Planning.

485. Maryland Block Groups

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Maryland Block Groups represents the U.S. Census block groups of Maryland. Environmental Systems Research Institute, Inc. (ESRI).

486. Maryland County Boundary Files, 1860-1880

Polygon Columbia University Restricted content
1999. Louisiana State University (Baton Rouge, La.).; Dept. of Geography and Anthropology., Earle, Carville., Heppen, John., and Otterstrom, Samuel. The features represent the county boundaries in Maryland from the years 1860-1880. The Historical United States County Boundary Files 1790 - 1999 (...

487. Maryland County Boundary FIles, 1890-1910

Polygon Columbia University Restricted content
1999. Louisiana State University (Baton Rouge, La.).; Dept. of Geography and Anthropology., Earle, Carville., Heppen, John., and Otterstrom, Samuel. This shapefile contains county boundaries for Maryland for the years 1980-1910. The Historical United States County Boundary Files 1790 - 1999 (or...

488. Maryland Major Roads

Line Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Maryland Major Roads represents interstate, U.S., and state highways and other major thoroughfares within Maryland. Environmental Systems Research Institute, Inc. (ESRI).

489. Maryland Major Roads 2002

Line Princeton University Restricted content
1999. Geographic Data Technology, Inc. (GDT). Maryland Major Roads represents interstate, U.S., and state highways and other major thoroughfares within Maryland. Environmental Systems Research Institute, Inc. (ESRI).

490. Maryland Tracts

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Maryland Tracts represents the U.S. Census tracts and block numbering areas (BNA) of Maryland. Environmental Systems Research Institute, Inc. (ESRI).

491. Maryland ZIP Code Areas

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Maryland ZIP Code Areas represents five-digit ZIP Code areas used by the U.S. Postal Service to deliver mail more effectively. The first digit of a... Environmental Systems Research Institute, Inc. (ESRI).

492. Massachusetts Birth Characteristics

Polygon Harvard University Public content
1999. Harvard Map Collection, U.S. Department of Commerce, Bureau of the Census, Massachusetts Institute for Social and Economic Research, University of Massachusetts, and Massachusetts Office of Geographic and Environmental Information (MassGIS). This datalayer is a polygon coverage for birth characteristics by town for Massachusetts during 1999. Tabular data includes numbers of births; numb...

493. Massachusetts Block Groups

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Massachusetts Block Groups represents the U.S. Census block groups of Massachusetts. Environmental Systems Research Institute, Inc. (ESRI).

494. Massachusetts Building Permits

Polygon Harvard University Public content
1999. Harvard Map Collection, U.S. Department of Commerce, Bureau of the Census, Massachusetts Institute for Social and Economic Research, University of Massachusetts, and Massachusetts Office of Geographic and Environmental Information (MassGIS). This datalayer is a polygon coverage of town outlines and building permit data for Massachusetts. This layer was derived from the Massachusetts Ele...

495. Massachusetts HIV/AIDS Incidence

Polygon Harvard University Public content
1999. Harvard Map Collection, US Census Bureau, Massachusetts Institute for Social and Economic Research, University of Massachusetts, and Massachusetts Office of Geographic and Environmental Information (MassGIS). This datalayer is a polygon coverage which will display Massachusetts towns and associated tabular data on the incidence of HIV infection and peopl...

496. Massachusetts Housing Density, 1999

Polygon Harvard University Public content
1999. Harvard Map Collection, U.S. Department of Commerce, Bureau of the Census, Massachusetts Institute for Social and Economic Research, University of Massachusetts, Massachusetts Office of Geographic and Environmental Information (MassGIS), and Commonwealth of Massachusetts, Department of Revenue, Division of Local Services. This datalayer is a polygon coverage for Massachusetts towns which will display town boundaries and housing density (expressed as housing units per...

497. Massachusetts Major Roads

Line Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Massachusetts Major Roads represents interstate, U.S., and state highways and other major thoroughfares within Massachusetts. Environmental Systems Research Institute, Inc. (ESRI).

498. Massachusetts Major Roads 2002

Line Princeton University Restricted content
1999. Geographic Data Technology, Inc. (GDT). Massachusetts Major Roads represents interstate, U.S., and state highways and other major thoroughfares within Massachusetts. Environmental Systems Research Institute, Inc. (ESRI).

499. Massachusetts Tax Rates, 2000

Polygon Harvard University Public content
1999. Harvard Map Collection, U.S. Department of Commerce, Bureau of the Census, Massachusetts Institute for Social and Economic Research, University of Massachusetts, and Massachusetts Office of Geographic and Environmental Information (MassGIS). This datalayer is a polygon coverage for Massachusetts which will display town boundaries and tax rate statistics for Fiscal Year 2000. Tax rates f...

500. Massachusetts Tracts

Polygon Harvard University Restricted content
1999. Geographic Data Technology, Inc. (GDT), Harvard Geospatial Library, and Environmental Systems Research Institute, Inc. (ESRI). Massachusetts Tracts represents the U.S. Census tracts and block numbering areas (BNA) of Massachusetts. Environmental Systems Research Institute, Inc. (ESRI).