Filters: Tags: Stacy, J.R.Collection (X) > partyWithName: Stacy, J.R. (X)

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Precambrian rock. Black Canyon of the Gunnison National Park, Colorado. 1965. Album caption and index card: Black Canyon of the Gunnison River (foreground), in Precambrian rock, is 2,500 feet deep. View is northeast to the West Elk Mountains (on skyline). Uplift of the Precambrian rocks while the canyon was being eroded diverted drainage that formerly came to the Black Canyon from the West Elk Mountains; the abandoned valley has been left hanging. Black Canyon Of The Gunnison National Monument. Montrose County, Colorado. 1965. Note: Published as figure 44 in U.S. Geological Survey. Professional paper 669-C. 1969. Categories: Image; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Black Canyon of the Gunnison National Park, Black Canyon of the Gunnison National Park Collection, National Parks, Photographers, Stacy, J.R.Collection, All tags... photo print, Fewer tags