Digital data for the geologic framework of the Alaska Peninsula, southwest Alaska, and the Alaska Peninsula terrane

USGS-Open-File Report 99-317 is a collection of digital databases that are the result of the compilation and re-interpretation of published and unpublished 1:250,000- and 1:63,360-scale mapping. The map area covers approximately 62,000 sq km (23,000 sq mi) in land area and encompasses much of 13 1:250,000-scale quadrangles on the Alaska Peninsula in southwestern Alaska. This report shows the bedrock geology of the following 1:250,000 scale quadrangles: Naknek, Mt. Katmai, Ugashik, Chignik, Sutwik Island, Cold Bay, Port Moller, Stepovak Bay, False Pass, Simeonof Island, Bristol Bay; and parts of Afognak and Karluk.

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