Filters: Tags: Permian (X) > Categories: Image (X)

Filters Date Range Past year (2) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts U.S. Geological Survey Lee, Willis Thomas Tag Types collection (2) Place (2) label (2) category (1) Tag Schemes http://www.sciencebase.gov/vocab/undefined/DenverHistoryPhotoLibrary/PhotoMedia (2) View Results as: JSON ATOM CSV

Middle portion of "section ridge" containing most of the Permian. Utah. 1903. Middle portion of "section ridge" containing most of the Permian. Canyon of Big Cottonwood. Utah. 1903. Categories: Image; Tags: Permian, Utah, photo print Limestone breccia and overlying gypsum in the side of Red Mountain. Wyoming. 1922. Limestone breccia and overlying gypsum in the side of Red Mountain where Professor Knight collected many Permian fossils. Wyoming. May 1922. Categories: Image; Tags: Lee, W.T. Collection, Permian, Photographers, Wyoming, photo print