GIS Data

USGS is a primary source of geographic information system (GIS) data. Our data and information is presented in spatial and geographic formats, including The National Map, Earth Explorer, GloVIS, LandsatLook, and much more. Explore GIS Data Maps.

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January 1, 1974

Map showing unconsolidated materials, Niantic quadrangle, Connecticut Map showing unconsolidated materials, Niantic quadrangle, Connecticut

No abstract available.

January 1, 1974

Map showing unconsolidated materials, Northfield quadrangle, Massachusetts-New Hampshire-Vermont Map showing unconsolidated materials, Northfield quadrangle, Massachusetts-New Hampshire-Vermont

No abstract available.

January 1, 1974

Map showing unconsolidated materials, Southwick quadrangle, Massachusetts-Connecticut Map showing unconsolidated materials, Southwick quadrangle, Massachusetts-Connecticut

This map is intended to serve as an aid in reconnaissance evaluation of unconsolidated materials and can be used to identify areas of potential interest. The units on this map indicate the first material of substantial thickness (generally greater than 3 feet (1 m) encountered beneath the soil layer. The soil layer (commonly a foot or two (about 0.5 m) thick) is not mapped. Other...

January 1, 1974