Up a small tributary of Clear Creek; shows the typical cliffs made by the principal oil- shale group of the Parachute Creek member of the Green River formation.
Dates
Date Taken
1917
Summary
Up a small tributary of Clear Creek; shows the typical cliffs made by the principal oil- shale group of the Parachute Creek member of the Green River formation. The photograph was taken approximately from the horizon of the "mahogany ledge". Garfield County, Colorado. 1917. Plate 2-A, U.S. Geological Survey. Professional paper 168. 1931.
Summary
Up a small tributary of Clear Creek; shows the typical cliffs made by the principal oil- shale group of the Parachute Creek member of the Green River formation. The photograph was taken approximately from the horizon of the "mahogany ledge". Garfield County, Colorado. 1917. Plate 2-A, U.S. Geological Survey. Professional paper 168. 1931.
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