Photograph of erosion control measures on a cultivated field. This field was formerly farmed with straight down hill rows and the soil suffered badly from silting. Terraces and grassed channels have been constructed and contour cultivation is now practiced. A volunteer crop of wheat serves as winter cover and supplemental pasture for livestock.

Photograph of the Red Shale Hills site (soil unit 24-RR) in poor condition, cover mainly of threeawn and weeds amounting to 1800 lb. per acre. The grass clumps are conspicuously tussocked by erosion of the exposed areas between.

Photograph of gully control by diverting wter, sloping banks and planting trees. This area was formerly a huge gully caused by unprotected diversion ditch. An area has been fenced out of pasture. Gully banks sloped, diversion terrace constructed and cottonwood and black locust trees planted. Erosion is 100% stabilized and trees show good growth. Geary, Okla. CCC Camp

Photograph of a huge roadside gully caused by run-off from improperly constructed terrace and unprotected outlets and outlet channels. OK-8673.

Photograph of range cover evaluation plot # 173, in poor condition. Range on red shale hills site (soil unit 24-RR) had 1288 pounds of threeawn grass cover per acre, which was 48% effective in controlling soil splash. Detectability was 28% and the splash itself amounted to 17,869 pounds per acre. OK-10-632.

Photograph of gully control in a natural drain, formerly 15 foot to 20 foot deep. Soil Conservation sloped banks, made fills and solid sodded to Bermuda grass. Approx. 700 acres drain through this outlet and erosion is almost 100% stabilized. May to August 1940 this outlet safely carried run-off from a total of 25 inches of rainfall.

Photograph of a view looking up a concrete spillway and across the spillway crest showing the rocky point in the background--which affects the entrance condition. OK-8439.

Photograph of a huge roadside gulley caused by water run-off from an improperly constructed terrace and unprotected outlets and outlet channels. OK-8673.

Photograph of little bluestem at the Red Plains Experiment Station. The bluestem was established in the spring of 1940 by 1500 pounds per acre seed-hay mulch. An effort has been made to thresh the seed from material by a small Allis-Chalmers combine. The hay contained considerable moisture, thus the threshed material contained considerable seed. Application was made broadcast on badly eroded sandy loam soil which had previously been cropped to cotton and grain sorghum. After spreading, the material was immediately rolled with a cultipacker. OK-8713.

Photograph of lightly used sideoats grass cover on the very shallow phase of the red shale hills site in the Rolling Red Plains, which is in excellent condition. The back of the photograph proclaims, "Cover on the very shallow phase of the red shale hills (Soils Unit 24) site in the Rolling Red Plains is sparse even in excellent condition. If the range has been grazed closely in past years, so that there is no accumulation of litter on the ground, there is room between the plants for raindrops to strike the soil directly. This photo shows lightly used side oats [sic] grass on the site."

Photograph of an UNIDENTIFED man standing in a gully caused by unprotected terrace outlet. The back of the photograph proclaims, "Gully along fence row is the result of unprotected terrace outlet channel and will be sloped and sodded to Bermuda for erosion control. Terraces will be extended across channel to divert all runoff out of gully & into adjoining pasture and the fence will be relocated."

Photograph of a close up shot of roots from first year clover on a failing field located on Norman Farm. The back of the photograph proclaims, "This field was failing; yields were low; the land was tight although rated as a medium textured soil. This excavation was made on one of the thin areas. The roots were growing out laterally. This was the first year of clover. See Okla-10-286."

Photograph of Carl Chastain kneeling in a field of soil improving Korean Lespedeza. The back of the photograph proclaims, "Carl Chastain in Korean Lespedeza utilized for soil improvement. This is the first year Korean Lespedeza has been used here and Chastain said "Where the oats and wheat were seeded with the Lespedeza the small grain grew 6" to 8" higher than in the other field."

Photograph of Plot 164 range cover evaluation of sideoats grama cover in controlling soil splash on red shale hills site. The back of the photograph proclaims, "Range cover evaluation plot 164 in excellent condition range on red shale hill site (soil unit 24-RR) had 4518 lb. sideoats grama cover per acre and was 97% effective in controlling soil splash. Detachability was 32% and splash amounted to 1,248 lb. per acre."

Photograph of Plot 173 range cover evaluation of three-awn cover in controlling soil splash on red shale hills site. The back of the photograph proclaims, "Range cover evaluation on plot 173, in poor condition range on red Shale hills site (soil unit 24-RR) had 1288 lb. threeawn cover per acre, which was 48% effective in control soil splash. Detachability was 28% and splash amounted to 17,869 lb. per acre."

Photograph of a Red Shale hills site (soil unit 24-RR) in excellent condition. A shovel is in the foreground of this photograph. The back of the photograph proclaims, "Red Shale hills site (soil unit 24-RR) in excellent condition. Sideoats grama and hairy grama plots in this area were 97-98% effective in preventing soil splash."

Photograph of a field of sweetclover overseeded in wheat stubble. The back of the photograph proclaims, "Field of sweet clover overseeded in wheat stubble. Will go to seed – then will be followed by wheat. C-3-E erosion – No evidence of plowpan – yield satisfactory. Clover has been used for a number of years. Roots were growing straight down in the normal way. See Okla-10-285."

Photograph of a huge roadside gully caused by run-off from improperly constructed terrace and unprotected outlets and outlet channels. OK-8673.

Photograph of range cover evaluation plot # 164, in excellent condition. Range on red shale hills site (soil unit 24-RR) had 4528 pounds of sideoats grama grass cover per acre, which was 97% effective in controlling soil splash. Detectability was 32% and the splash itself amounted to 1,248 pounds per acre. OK-10-634.

Photograph of a huge roadside gully caused by run-off from improperly constructed terrace & unprotected outlets and outlet channels.

Photograph of raindrop applicator in operation on red shale hills stie of Rolling Red Plains.

Photograph of erosion control on cultivated field. This field was formerly farmed with straight down hill rows and the soil suffered badly from silting. Terraces and grassed channels have been constructed and contour cultivation is now practiced. A volunteer ceop of wheat serves as winter cover and supplemental pasture for livestock.

Photograph of erosion control project. Lateral roads were formerly unassessable due to huge gully across roadbed. Area has been resectioned and sloped, a drop inlet and two culverts constructed by WPA. Safer roadways and safer waterways result.

Photograph of roadside erosion control project. Fill has been made in road and drop inlet and old bridge and severe gully formerly filled the center area of this intersection. Lateral roadways were impassable before erosion control work was started.