Upper beds of Flint Creek removed and called Barnes Creek gravel because they are unconformable on lower part of Flint Creek and because they have Pliocene. [Neither reason valid for revision.] Overlies Cabbage Patch beds; underlies Barnes Creek gravel (new). Ranges from 0-500 ft thick in area, Powell Co, MT, Montana folded belt province. Thinner and more excellent bedding distinguishes Flint Creek from underlying Cabbage Patch beds. Of Tertiary age.
Source: GNU records (USGS DDS-6; Denver GNULEX).
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