EarthWorks Geospatial Catalog

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1. 100 Foot Grid Cambridge MA 2004

2004. This polygon dataset is a 100 foot grid overlay for Cambridge, MA. Cambridge (Mass.) Geographic Information Systems.

2. 100 Years of Estuarine Marsh Trends in Massachusetts (1893 to 1995): Boston Harbor, Cape Cod, Nantucket, Martha's Vineyard, and the Elizabeth Islands

2011. This dataset shows the general extent of the report, "100 Years of Estuarine Marsh Trends in Massachusetts (1893 to 1995): Boston Harbor, Cape Cod,...

3. 102nd Congressional Districts, United States, 1991-1993

1991. District boundaries for the 102nd United States Congress, Jan. 3, 1991 to Jan. 3, 1993. Harvard Geospatial Library.

4. 106th Congressional District Boundaries

1999. The 106th Congressional District Boundaries data set contains geographic information for the political entities of the Congressional districts of t... Bureau of Transportation Statistics.

5. 108th Congressional Districts (Polygons)

2007. The U.S. Congressional Districts datalayer reflects the U.S. House of Representatives voting district boundaries as established for the 108th Congr...

6. 1:1000 Grid Newton MA 2007

2007. This polygon dataset repredents the sheet layout grid for the Assessor's 1:1000 (metric) scale maps in Newton, MA. Newton (Mass.). Engineering Department.

7. 1:100,000 Quadrangle Polygon Boundaries: Russian River Watershed, California, 1996

1996. Circuit Rider Productions. This layer shows the areas of the USGS 1:100,000 quadrangle boundary maps that are within the watershed boundaries of the Russian River basin.This ... Circuit Rider Productions.

8. 1:1,000,000-Scale Combined Statistical Areas, 2013

2013. National Atlas of the United States. This polygon shapefile contains combined statistical areas in the United States and Puerto Rico. Combined statistical areas consist of two or more ... National Atlas of the United States.

9. 1:1,000,000-Scale Core Based Statistical Areas, 2013

2013. National Atlas of the United States. This polygon shapefile contains core based statistical areas in the United States and Puerto Rico. The map layer was created from the CENSUS 2010 T... National Atlas of the United States.

10. 1:1,000,000-Scale County Boundaries of the United States, 2014

2014. Geological Survey (U.S.). This polygon shapefile contains the county boundaries of the United States, Puerto Rico, and the U.S. Virgin Islands, by showing the counties as ar... Geological Survey (U.S.).