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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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Lake Erie geological and geophysical data sources

No abstract available.

Lake Huron geological and geophysical data sources

No abstract available.

Lake Michigan geological and geophysical data sources

No abstract available.

Lake Ontario geological and geophysical data sources

A bibliography of various geological and geophysical data sources was compiled as part of an overall effort to evaluate the status of research on the Great Lakes.  We hope that such a summary will be a catalyst for additional work and be an aid in planning future work.  Our presentation has two forms: maps showing the locations of the different data types and a bibliography which lists the referen

Lake Superior geological and geophysical data sources

No abstract available.

Land cover map of the Green Swamp area, central Florida

No abstract available.