Bench gravel overlying cream-colored, Tertiary lake clay in Missouri River Valley near Lake Sewell, east of Helena.
Dates
Date Taken
1923
Summary
Bench gravel overlying cream-colored, Tertiary lake clay in Missouri River Valley near Lake Sewell, east of Helena. Fort Logan quadrangle. Meagher County, Montana. June 15, 1923.
Summary
Bench gravel overlying cream-colored, Tertiary lake clay in Missouri River Valley near Lake Sewell, east of Helena. Fort Logan quadrangle. Meagher County, Montana. June 15, 1923.
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