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Closer view of hogback ridges of Perry Park, looking northwest across Bear Creek. Douglas County, Colorado 1913.

Dates

Date Taken
1913

Summary

Closer view of hogback ridges of Perry Park, looking northwest across Bear Creek, dip of Dakota sandstone, which is nearly vertical on the high knob, becomes less steep toward the right. Sandstone of the Purgatoire, which forms a shoulder on the Dakota hogback, makes the white hill across the lake. Morrison and Lykins formations occupy depression between hogback ridges. Vertical Lyons sandstone makes an almost continuous wall on left. Douglas County, Colorado 1913. Plate 13 in U.S. Geological Survey. Folio 198. 1915.

Contacts

Data Owner :
U.S. Geological Survey
Photographer :
Richardson, George Burr

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rgb00268.jpg thumbnail 6.22 MB image/jpeg

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This USGS product is considered to be in the U.S. public domain. For further information on the USGS Information Policies and Instructions, refer to the Copyrights and Credits section on this web page: http://www.usgs.gov/laws/info_policies.html
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Type Scheme Key
name photoLibrary rgb00268
number photoLibrary 29959
batch photoLibrary btch328
number_in_book photoLibrary 268

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