121. Connecticut.
1892. Shows railroads and county boundaries. Prime meridian: Greenwich. 26 x 40 centimeters Scale approximately 1:400,000 General Map Collection.
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2016. Hart Energy Publishing. This polygon shapefile represents counties in North America (Canada, Mexico, and the United States). Data includes county name and location by stat... Hart Energy Publishing.
1980. Geological Survey (U.S.). This polygon shapefile contains the 1980 state and county boundaries of the United States, Puerto Rico, and the U.S. Virgin Islands. The map layer ... Geological Survey (U.S.).
2005. Geological Survey (U.S.). This polygon shapefile portrays the 1990 state and county boundaries of the United States, Puerto Rico, and the U.S. Virgin Islands. The map layer ... Geological Survey (U.S.).
2000. Geological Survey (U.S.). This polygon shapefile portrays the 2000 state and county boundaries of the United States, Puerto Rico, and the U.S. Virgin Islands. The map layer ... Geological Survey (U.S.).
2014. United States. Bureau of Transportation Statistics. This polygon shapefile contains United States county boundaries with political limits extracted from the U.S. Census Bureau's MAF/TIGER Database (M... United States. Bureau of Transportation Statistics.
1860. Mitchell, S. Augustus (Samuel Augustus), 1792-1868. Shows counties, towns, roads, and other features. Relief shown by hachures. "Entered according to Act of Congress in the year 1860 by S. August... S. Augustus Mitchell, Jr (Philadelphia, Pa.?).
1863. Gamble, William H. "Entered according to Act of Congress in the year 1863 by S. Augustus Mitchell, Jr. ..." Map extends into decorative floral border. From: Mitch... S. Augustus Mitchell, Jr (Philadelphia).
1862. Gamble, W. H. (William H.). Shows county boundaries as of 1860?; From: Mitchell's new general atlas / Samuel Augustus Mitchell. 1863. pl. 42.; Prime meridians: Greenwich, Wash... S. Augustus Mitchell (Philadelphia), 1862.
1880. Gamble, W. H. (William H.). Relief shown by hachures and spot heights.; Shows Minnesota counties as of 1879, cities and towns, railroads, and natural features.; At base of map... S. Augustus Mitchell (Philadelphia, Pa.?), 1880.