Image: Rampart Canyon
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Description: Entrance to upper end of Fort Hamlin-Rampart Canyon of Yukon River. View downstream. Bluffs on both banks are in "Rampart Group" volcanics of lower Mississippian age, capped with stream gravel (not exposed) and surficial eolian silt. Yukon Flats district, Yukon region, Alaska.
Title: Rampart Canyon
Credit: U.S. Geological Survey photographic library, http://libraryphoto.cr.usgs.gov/cgi-bin/show_picture.cgi?ID=ID.%20Williams,%20J.R.%20058
Author: J.R. Williams
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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