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A Pleistocene Ice Sheet in the Northern Boulder Mountains, Jefferson, Powell, and Lewis and Clark Counties, Montana

A Pleistocene Ice Sheet in the Northern Boulder Mountains, Jefferson, Powell, and Lewis and Clark Counties, Montana A Descriptive Report of the Glacial Geology in the Northern Part of the Boulder Mountains, Montana

Edward Thompson Ruppel — 1962
A descriptive report of the glacial geology in the northern part of the Boulder Mountains, Montana.
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