Cannon Ball Hill. Round rocks that look like cannon balls are seen in this black and white photo. Larger boulders are further up the hill located in Converse County, Wyoming.
Black and white photograph;
Digitized by Forsyth Digital Collections
Copyright University Archives, Fort Hays State University
Sternberg, George Fryer 1883-1969, "072-02 - Cannon Ball Hill" (1909). George Sternberg Album #1 - Early Pictures. 314.
Canon [sic] Ball hill note innumerable round concretions. 1909. G.F.S.