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2013. Maine. Department of Marine Resources. This polygon shapefile represents shellfish growing and classification areas for states in the northeastern U.S. including Connecticut, Maine, Mass... Northeast Ocean Data.
2013. Geological Survey (U.S.). This point shapefile contains selected streamflow gaging stations of the United States, Puerto Rico, and the U.S. Virgin Islands, in 2013. Gaging s... Geological Survey (U.S.).