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,...
1991. District boundaries for the 102nd United States Congress, Jan. 3, 1991 to Jan. 3, 1993. Harvard Geospatial Library.
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.
2007. The U.S. Congressional Districts datalayer reflects the U.S. House of Representatives voting district boundaries as established for the 108th Congr...
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.
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.
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.
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.
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.).