Photograph of a soil survey. Harmon stony loam. A very shallow to shallow soil developed on dolomitic limestone. Class VI land. Shallow Range site. OK-720-6.

Photograph of a soil survey. While making the soil survey, Richard Graft, Soil Conservation Service [SCS] scientist, discovered a recently-formed gyp sink [= a sinkhole] in a gently sloping wheat field of Tillman clay loam soil. The gyp sink is approximately 30 feet deep and 15 feet wide. OK-720-12.

Photograph of Jake Ringwald and Hubert Mobley, SCS Soil Scientists, peering into recently formed gyp sink hole, which is approximately 30 feet deep and 15 feet wide. The photograph does not identify the left to right positions of Ringwald or Mobley. The back of the photograph proclaims, "Jake Ringwald and Hubert Mobley, SCS Soil Scientists, peering into recently gormed [sic] gyp sink in a gentley [sic] sloping what field of Tillman clay loam soil. The hole is approximately 30 feet deep and 15 feet wide. See Ok-720-12 for inside of hole."