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2014. SeaPlan. This polygon shapefile represents eelgrass beds in the Northeastern United States. Eelgrass (Zostera marina) beds are critical wetlands components ... Northeast Regional Ocean Council.
2014. Nature Conservancy (U.S.). This point shapefile contains site locations from the National Register of Historic Places in Maine, Massachusetts and Rhode Island within 10km of ... Northeast Regional Ocean Council.
2014. Nature Conservancy (U.S.). This point shapefile contains site locations from the National Register of Historic Places in Maine, Massachusetts and Rhode Island within 10km of ... Northeast Regional Ocean Council.