1. Beardsley Yale Public content 1918. 2011-12-12T21:29:52Z. 2022-03-29T20:39:46Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Minnesota and South Dakota.
2. Map of Tripp County, South Dakota Yale Public content 1918. 2014-06-23T19:12:14Z. 2021-05-25T21:32:51Z. Malven, C. F., cartographer. Malven & McManigal. English. cartographic image. Public. South Dakota, Tripp County, and Tripp County (S.D.).
3. Peever Yale Public content 1918. 2011-12-12T21:36:57Z. 2022-03-29T20:40:40Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. South Dakota.
4. White Rock Yale Public content 1918. 2011-12-12T21:36:59Z. 2022-03-29T20:40:40Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. South Dakota.