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41. Africa: River Network, 15s resolution, 2007

Line Stanford University Public content
2007. World Wildlife Fund. This river network (stream lines) map for Africa is derived from the flow direction map for Africa. The flow accumulation map for Africa is used fo... Geological Survey (U.S.).

42. Africa: River Network, 30s resolution, 2007

Line Stanford University Public content
2007. World Wildlife Fund. This river network (stream lines) map for Africa is derived from the flow direction map for Africa. The flow accumulation map for Africa is used fo... Geological Survey (U.S.).

45. African Marine Atlas

Collection Stanford University Public content
2007. The purpose of the African Marine Atlas (AMA) is to identify, collect and organize available geospatial datasets into an atlas of environmental the... Ocean Data and Information Network for Africa.

46. Agriculture Census of the United States, 2007

Polygon Stanford University Public content
2007. National Atlas of the United States. This polygon shapefile portrays a selected set of information that was collected for the 2007 Census of Agriculture by the National Agricultural St... National Atlas of the United States.

47. Airport

Point University of California, Berkeley Public content
2007. Marin County Department of Public Works. Airports data was digitized from known locations under the recommendation of Marin County Department of Public Works. San Rafael (Calif.). County Of Marin.

49. Airports, Honduras, 2006

Point Stanford University Public content
2006. International Steering Committee for Global Mapping and Direccion General de Catastro y Geografia, General Direction for Cadastre and Geography. This point shapefile represents airports in Honduras. The Global Map Honduras version 2 was developed based on Global Map Specifications version 2.... International Steering Committee for Global Mapping.

50. Airports, Macedonia, 2006

Point Stanford University Public content
2006. International Steering Committee for Global Mapping and Macedonia (Republic). Agency for Real Estate Cadastre. This point shapefile represents airports in Macedonia. The Global Map Macedonia was developed by SAGW as e CAD data in dgn format, and then adapted... International Steering Committee for Global Mapping.

51. Alabama U.S. Census Block Centroid Populations : ESRI Data & Maps 2007

Point Harvard University Restricted content
2007. Tele Atlas North America, Inc., Environmental Systems Research Institute (Redlands, Calif.), and Harvard Geospatial Library. Alabama U.S. Census Block Centroid Populations represents the populations of the U.S. Census blocks for the state of Alabama. U.S. Census blocks ar... ESRI.

52. Alameda County Roads 2006

Line University of California, Berkeley Public content
2006. MTC. Roads in Alameda County, California. California. Metropolitan Transportation Commission.

53. Alaska U.S. Census Block Centroid Populations : ESRI Data & Maps 2007

Point Harvard University Restricted content
2007. Tele Atlas North America, Inc., Environmental Systems Research Institute (Redlands, Calif.), and Harvard Geospatial Library. Alaska U.S. Census Block Centroid Populations represents the populations of the U.S. Census blocks for the state of Alaska. U.S. Census blocks are ... ESRI.

54. Albania Administrative Boundaries Level 1, 2006

Polygon Columbia University Restricted content
2006. ESRI. Albania Administrative Boundaries Level 1 is a polygon theme representing the boundaries for the first-level administrative units of Albania. ESRI.