Map quadrangle regions

Regions on rectangular maps bounded by parallels of latitude and meridians of longitude, generally published in a series with prescribed scale. [Adapted from Glossary of Geology, 4th ed.]
This category is also used for quadrangle regions and topographic quadrangle regions.
Alexandria Digital Library Feature Type Thesaurus

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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.