Study of the earth's landforms, topography, and climate, the distribution of flora and fauna, and the distribution, culture, and activities of human populations.
This category is also used for geographic information sciences.

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Alaska map quadrangles at 1:250,000 scale

Outlines of 1:250,000 scale map quadrangles in Alaska for use as a geographic reference within Google Earth or other software capable of interpreting KML, with links to additional mineral resource-related geoscientific information produced by USGS.