Photograph of grade school children studying soil-plant relationships. OK.

Photograph of grade school children studying soil-plant relationships. OK

Photograph of grade school children studying soil-plant relationships. OK.

Photograph of Kenneth Yoakum, District Conservationist; B.M. Stephens, Chairman of the Pontotoc County Conservation District & Jack McPhetridge, Government Trapper, hold rope attached to the sediment tower as Mike Gray & Dennis Goodwin come ashore after unplugging sediment tower, Site 18, Leader-Middle Clear Boggy. OK-4671-3.

Photograph of district Conservationist Kenneth Yoakum and Inspector Doyle Abel looking over a new sediment tower with trash guard designed to keep beavers from clogging towers, 1972. OK-4114-15.

Photograph of "District Conservationist, Kenneth Yoakum, and Area Conservationist, Fred Fortney, meet with County and State Health official and City Manager, Jim Cook, to discuss development of land fill operation for city of Ada." There are no individual identifiers to identify the left to right position of the seven men present at the meeting.

Photograph of covering refuse with a layer of soil. Ratio is about two feet of refuse and then one foot of soil.

Photograph of spreading refuse evenly over area in pit of a sanitary landfill.

Photograph of a bulldozer on top of a pile of debris, tilted at an angle toward a pit partially visible at the right side of the images. There are hills of gravel or soil behind the bulldozer and open fields in the background. Text on back "Spreading refuse in pit."

Photograph of spreading refuse in a pit with a bulldozer.

Photograph of a poisonous range plant. Larkspur white flower perennial [genus Delphinium]. Many species of the native, tall larkspurs are poisonous to livestock. Conservation ranchers usually avoid turning hungry cattle into a pasture infested with any species of larkspur. OK-261-9.

Photograph of a poisonous range plant. A larkspur white flower perennial. Many species of the native tall larkspurs are poisonous to livestock. Conservation ranchers usually avoid turning hungry cattle into pasture infested with any species of larkspur. OK-261-9.

Photograph of “M. C. Williams and Soil Conservationist Sam Comes review Williams’ conservation plan.” The photo does not clarify the position of M. C. Williams and Sam Comes.

Photograph of a field of several Bermudagrass hay bales grown on Galey loamy fine sand. The back of the photograph proclaims, "Bermuda grass hay on Galey loamy fine sand 1 to 3 percent slopes. This grass does a good job of erosion control and provides high quality hay for livestock."

Photograph of "A continuation of Indiangrass, little bluestem along with flameleaf sumac, blackjack oak, winged elm and eastern red cedar, together with good range management has restored a productive cover on this gullied, formerly cultivated field of Konawa soils, 3 to 8 percent slopes, severely eroded."

Photograph of an UNIDENTIFED US Government Department of Agricultural soil scientist taking a profile of Konawa fine sandy loam. The back of the photograph proclaims, "A soil scientist examines a profile of Konawa fine sandy loam."

Photograph of an ideal “openland wildlife” habitat. This is an area of Konawa soils, 3 to 8 present slopes, severly eroded. Shrubs and grasses provide both food and cover. OK-2852-3.

Photograph of a field of several Bermudagrass hay bales made from improved varieties of Bermudagrass grown on Konawa fine sandy loam. The back of the photograph proclaims, "Improved varieties of Bermuda grass produces higher forage yields than common varieties on Konawa fine sandy loam, 1 to 3 percent slopes."

Photograph of Leader-Middle Boggy Creek. Tommy Johnson, district Cooperator and Kenneth Yoakum, Work Unit Conservationist (WUC), Soil Conservation Service (SCS), Ada, OK. Mr. Johnson trying his hand at fishing. OK-2595-6.

Photograph of Mr. Tommy Johnson showing WUC Kenneth Yoakum hi speanuts planted on the protected flood plain below the detention structure. OK-2596-7.

Photograph of Mr. Tommy Johnson and Work Unit Conservationist (WUC) Kenneth Yoakum are standing on top of the dam at Site # 20, Lander-Middle Clear Boggy (LMCB) Creek, discussing Mr. Johnson's conservation plan. Peanits and pecans below the dam are protected from the flood water. OK-2596-14.

Photograph of sideoats grama, silver bluestem and blue grama have their full year's growth on the Talpa soil in the foreground whereas the bluestem in the background, on the [unclear] part of the Scullin-Talpa complex. 2 to 6 % slopes were mowed for the day. OK-2444-9.

Photograph of a moderately grazed shallow savannah range site. The back of the photograph proclaims, "This shallow savannah range site has been moderately grazed during the winter, preceded by chemical spray and summer deferment. Grasses are big bluestem, little bluestem and Indiangrass. Trees are post oak and blackjack oak. The soil is the Darnell fine sandy loam part of Darnell-Stephenville fine sandy loams, 5 to 20 percent slopes."

Photograph of bulldozer attachment—a saw blade. From the K. P. Larsh Ranch-owned saw-dozer, with the blade operated at ground level. OK-2474-5.