1. Photogeologic map of the Navajo Mountain-1 quadrangle, San Juan County, Utah [cartographic material] Yale Public content 1956. 2012-08-28T19:59:03Z. 2013-03-18T22:15:31Z. Olson, A. B. The Survey. English. Public. Utah and San Juan County.
2. Photogeologic map of the Navajo Mountain-8 quadrangle, San Juan County, Utah [cartographic material] Yale Public content 1957. 2012-08-28T18:13:05Z. 2013-03-18T22:15:25Z. Olson, A. B. The Survey. English. Public. Utah and San Juan County.
3. Photogeologic map of the Paria SW quadrangle, Kane County, Utah, Coconino County, Arizona [cartographic material] Yale Public content 1957. 2012-09-04T18:37:39Z. 2013-03-18T22:16:12Z. Olson, A. B. The Survey. English. Public. Utah, Kane County, Arizona, and Coconino County.
4. Photogeologic map of the Tidwell-10 quadrangle, Emery County, Utah [cartographic material] Yale Public content 1956. 2012-08-21T18:58:53Z. 2013-03-18T20:19:47Z. Olson, A. B. U.S. Geological Survey. English. Public. Utah and Emery County.
5. Photogeologic map of the Tidwell-11 quadrangle, Emery County, Utah [cartographic material] Yale Public content 1956. 2012-08-28T19:54:05Z. 2013-03-18T20:21:34Z. Olson, A. B. The Survey. English. Public. Utah and Emery County.