Mazama ash in colluvium, borrow pit west of Interstate 15 south of Butte, at mileage 118.9. Beaverhead County, Montana. nd.
Summary
Album caption: Mazama ash in colluvium, borrow pit west of Interstate 15 south of Butte, at mileage 118.9. The light ash layer is about 10 cm thick. Published as figure 22.
Summary
Album caption: Mazama ash in colluvium, borrow pit west of Interstate 15 south of Butte, at mileage 118.9. The light ash layer is about 10 cm thick.
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Related External Resources
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Bedrock geology of the Vipond Park 15-minute, Stine Mountain 7 1/2-minute, and Maurice Mountain 7 1/2-minute quadrangles, Pioneer Mountains, Beaverhead County, Montana. Geological Survey (U.S.) Bulletin 1625. 1988.
Available in the U.S. Geological Survey Denver Library Photographic Collection, Zen, E-An Collection.
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