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Filters: Tags: Routt County, Colorado. (X) > partyWithName: U.S. Geological Survey (X)

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Panorama with image 239. General view of lower coal-bearing series at mouth of Fish Creek, looking north. Routt County, Colorado. 1905.
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J. Paul Storrs, mining engineer, U.S. Geological Survey, examining stripping operations and dragline on Edna Coal Company's lease
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U.S. Geological Survey, mining engineer obtaining information concerning coal-loading operations at Edna strip pit on public land near Oak Creek, Routt County, Colorado. 1960.
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Album caption:Two modes of occurrence of secondary anatase. (From 990.5 feet below top of core). Disseminated grains. Routt County, Colorado. 1972.(Photomicrograph) Published as figure 8-B in U. S. Geological Survey. Bulletin 1367. 1973.
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Album caption: Bleached porphyry of Hahns Peak. Dark quartz andesite porphyry dike rock. Routt County, Colorado. 1972. (Specimen) Published as figure 6 in U. S. Geological Survey. Bulletin 1367. 1973.
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Album caption: Silver-bearing tetrahedrite (tetrahedrons) and quartz crystals in small cavity (271.5 feet below top of core). Routt County, Colorado. 1972. Published as figure 9 in U. S. Geological Survey. Bulletin 1367. 1973.
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Album caption:Two modes of occurrence of secondary anatase. (From 990.5 feet below top of core). In microvugs. Routt County, Colorado. 1972. (Photomicrograph) Published as figure 8-A in U. S. Geological Survey. Bulletin 1367. 1973.
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Album caption: Typical pink zircon crystal occurring as accessory mineral (671 feet below top of core).Routt County, Colorado. 1972. (Photomicrograph) Published as figure 5 in U. S. Geological Survey. Bulletin 1367. 1973.
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1/2 mile southwest of Pilot Knob, Sec. 24, T. 8N., R.87W
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Runoff from waste spoils, Edna Mine. Routt County, Colorado.n.d. Figure 1-F in U.S. Geological Survey. Circular 839. 1981.
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Panorama with image 243. General view of exposures at Brooks coal mine. Routt County, Colorado. 1905.
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Album caption: Pale-green botryoidal crusts of variscite lining a cavity (426 feet below top of core).Routt County, Colorado. 1972. (Photomicrograph) Published as figure 11 in U. S Geological Survey. Bulletin 1367. 1973.
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Album caption: Stralike platelet of pyrite (1,202 feet below top of core). Routt County, Colorado. 1972. (Photomicrograph) Published as figure 7 in U. S. Geological Survey. Bulletin 1367. 1973.


    map background search result map search result map Placer gold diggings. Hahns Peak, Routt County, Colorado. 1903. Typical pink zircon crystal occurring as accessory mineral (671 feet below top of core).Routt County, Colorado. 1972. Bleached porphyry of Hahns Peak. Routt County, Colorado. 1972. Stralike platelet of pyrite (1,202 feet below top of core). Routt County, Colorado. 1972. Two modes of occurrence of secondary anatase.  Routt County, Colorado. 1972. Two modes of occurrence of secondary anatase. Routt County, Colorado. 1972. Silver-bearing tetrahedrite (tetrahedrons) and quartz crystals in small cavity (271.5 feet below top of core). Routt County, Colorado. 1972. Pale-green botryoidal crusts of variscite lining a cavity. Routt County, Colorado. 1972. Placer gold diggings. Hahns Peak, Routt County, Colorado. 1903. Typical pink zircon crystal occurring as accessory mineral (671 feet below top of core).Routt County, Colorado. 1972. Bleached porphyry of Hahns Peak. Routt County, Colorado. 1972. Stralike platelet of pyrite (1,202 feet below top of core). Routt County, Colorado. 1972. Two modes of occurrence of secondary anatase.  Routt County, Colorado. 1972. Two modes of occurrence of secondary anatase. Routt County, Colorado. 1972. Silver-bearing tetrahedrite (tetrahedrons) and quartz crystals in small cavity (271.5 feet below top of core). Routt County, Colorado. 1972. Pale-green botryoidal crusts of variscite lining a cavity. Routt County, Colorado. 1972.