Filters: Categories: Image (X) > Date Range: {"choice":"year"} (X) > Tags: {"type":"place","name":"routt county, colorado."} (X)

Filters Date Types (for Date Range) Types Map Service (1) OGC WFS Layer (1) OGC WMS Layer (1) OGC WMS Service (1) Contacts U.S. Geological Survey Young, Edward Joseph Tags (with Type=place ) routt county, colorado. (1) View Results as: JSON ATOM CSV

Bleached porphyry of Hahns Peak. Routt County, Colorado. 1972. 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. Categories: Image; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Photographers, Routt County, Colorado., Young, E. J. collection, photo print