J.C. Stevenson and Ralph Dietrich (Work Unit Conservationist), with three-quarter ponies at Mr. Stevenson's ranch 1 mile southeast of Carson. View shows tame grass pasture of brome grass, crested wheat grass, intermediate wheat grass, green needlegrass and Russian wildrye. Seeded in 1955. Photo by B.C. McLean, July 29, 1957. USDA Soil Conservation Service Photo.