Photograph of an aerial shot of Site #6 of a UNIDENTIFED detention reservoir. A home and farm is visible on the lower left of photograph. The back of the photograph proclaims, “OK-SCD-13.Wa.2. Site #6. 480 acres drainage area. (200 acres in cultivation; 280 acres in pasture, range, wood.) Soil conservation practices incomplete on cultivated land. Expected to be completed in fall of 1948. Permanent storage in reservoir – 0.8. Perm. Pool – 8.2 surface acres. Flood pool (10 ft. additional depth) – 26.4 acres surface; 4.2 inches stores. Peak flow – 1,000 c.f.s. Release rate – 20 c.f.s. 700 acres bottomland protected. Flood drainage benefit ratio 6.6/1. Detention Reservoir.”

Photograph of aerial view of watershed: OK-SCD-20 Wa #5, Site #3. Type of structure: Drop inlet. Drainage area: 160 acres. Soil units: Deep medium textured slowly permeable and permeable. Area in cultivation: 32 acres. Area in pasture: 12 acres. Area in abandoned cropland: 116 acres. General condition of drainage area: Poor cover, sheet and gully erosion. Note: Right edge shown Site #2 on Adolph Johanson farm. Type of structure: Drop inlet. Drainage area - 15 acres (4 acres in pasture, 11 acres in abandoned cropland). General condition of drainage area: Poor cover, serious gully & sheet erosion. It protects detention reservoir #1 & bottomland from silt. See pipe installed in third gully from right edge.

Photograph of hand harvesting weeping lovegrass seed in 2 year old planting in corner of cultivated field. Note terraces and contour cultivation in background. Whitehead operates a 520 acre farm and plans to plant 10 to 15 acres of lovegrass next year. Last year he hand harvested 24 pounds of seed from 1/8 acre.A 2 acre field of ryegrass was grazed by 130 hogs, one hour in the morning and one hour in the afternoon for 90 days, beginning February 1, 1945. Seed was then combined from the plot. Mr. Whitehead says the grass alone was worth as much as 200 bushel of corn. Yield of lovegrass seed this year is estimated at 125 pounds per acre from approximately 8 acres. Mr. Whitehead and his son are shown it the photograph.

Photograph of hand harvesting weeping lovegrass seed in 2 year old planting in corner of cultivated field. Note terraces and contour cultivation in background. Whitehead operates a 520 acre farm and plans to plant 10 to 15 acres of lovegrass next year. Last year he hand harvested 24 pounds of seed from 1/8 acre.A 2 acre field of ryegrass was grazed by 130 hogs, one hour in the morning and one hour in the afternoon for 90 days, beginning February 1, 1945. Seed was then combined from the plot. Mr. Whitehead says the grass alone was worth as much as 200 bushel of corn. Yield of lovegrass seed this year is estimated at 125 pounds per acre from approximately 8 acres. Mr. Whitehead and his son are shown it the photograph.

Photograph of hand harvesting weeping lovegrass seed in 2 year old planting in corner of cultivated field. Note terraces and contour cultivation in background. Whitehead operates a 520 acre farm and plans to plant 10 to 15 acres of lovegrass next year. Last year he hand harvested 24 pounds of seed from 1/8 acre.A 2 acre field of ryegrass was grazed by 130 hogs, one hour in the morning and one hour in the afternoon for 90 days, beginning February 1, 1945. Seed was then combined from the plot. Mr. Whitehead says the grass alone was worth as much as 200 bushel of corn. Yield of lovegrass seed this year is estimated at 125 pounds per acre from approximately 8 acres. Mr. Whitehead and his son are shown it the photograph.

Photograph of hand harvesting weeping lovegrass seed in a 2-year old planting in a corner of a cultivated field. (Note terraces and contour cultivation in background). W.R. Whitehead operates a 520 acre farm and plans to plant 10 to 15 acres of lovegrass next year. Last year he hand harvested 24 lbs. of seed from 1/8th an acre. A 2 acre field of rye grass was grazed by 130 hogs, one hour in the morning and one hour in the afternoon for 90 days beginning February 1, 1945. Seed was then combined from the plot. Mr. Whitehead says the grazing alone was worth as much to him as 200 bushels of corn. Yield of lovegrass seed this year is estimated at 125 lbs per acre from approximately 8 acres. Mr. Whitehead and his son are shown in the photpgraph. OK-8992.

Photograph of W. R. Whitehead hand harvesting weeping lovegrass.

Photograph of sideoat grama planted on the contour to take the place of terraces and break up the concentration of water between upland and bottom. OK-98-5.

Photograph of lost water from straight row farming on about 2 percent slope section of land. Water was coming from field out into bar ditch in foreground along highway. Photograph was taken during a 1 in. rain.

Photograph of water lost from a field left of the photograph. The field was cultivated up and down slope. This stream of water came out of field into the bar ditch along highway during a 1.5 in. rainfall. Width of stream in foreground is 40 feet. Photo was taken while raining. Slope estimated to be 2 percent.

Photograph of a river of water pouring out of a section of land. Up and down slope tilled during a 1 1/4 inch of rain. Straight rows may be seen in background. The slope was about 2.5 inch toward the point where the picture was taken. The huge volume of water that broke through the end of the field into the bar ditch along highway caused regular rapids and churning water. Width of water in the main current was at least 2 feet deep. Photo was taken during a rain.

Photograph of concrete form used for lining a farm irrigation ditch with concrete.

Photograph of concrete liined irrigation ditch is stablized but unlined ditch is eroding.

Photograph of Carey silt loam profile. Note the compound columnar structure and the accumulation of caliche. The A1 horizon is about 12 inches thick, the B2 and B3 are about 2 ½ feet thick and the C ca [ca = pedogenic carbonates = carbonic acids that can that modify soil constituents] horizon extend below this. Entire picture covers 6½ feet of depth, typical of much of Carey soils in Harper County, transported by alluvial-colluvial forces from nearby hills and a weak B horizon has formed in places. Some soils are moderately permeable. OK-304-4.

Photograph of waershed structure showing wave action damage. Button bush has been planted on the front slope. OK-4238-6.

Photograph, Upper Washita watershed, watershed structure that has been overgrazed. OK-4238-4.

Photograph of various Damco drilling accessoried, including rubber packer, roller bit, fishtail, diamond bit, shale bit, NX core barrel, and drill stem.

Photograph of a chart showing a comparison of tall fescue and orchard grass when grown alone and in mixture with Ladino clover. 3-Year Average of forage production.

Photograph of a poorly prepared seedbed. The back of the photograph proclaims, "Seedbed poorly prepared on 12 soil unit. Wheat was one-wayed before seeding grass. Soil blowed [sic] a lot. There is a poor stand of native grass at present."

Photograph of the scenic beauty of the NE Oklahoma hills. OK-3794-15.

Photograph of a field on the Daisy Dunn Bois D' Arc Ranch which one side (left) was sprayed for shinnery control, while the right side was not. The back of the photograph proclaims, "Spraying for shinnery oak control. Left half picture sprayed in spring of 1958. Right half of picture has not been sprayed."

Photograph of "Small native grass plants in rows on shallow sand rock soil."

Photograph of three UNIDENTIFED workers using a hydro seeder to seed backslope of Detention site, No. 4, Sgt. Major Creek, to mixture of native grasses. Bermuda sprigging crew is seen on the bottom left and a fencing crew is located in the center right of photo. The back of the photograph proclaims, "Hydro seeder seeding back slope [sic] of Detention site, No. 4, Sgt. Major Creek, to mixture of native grasses. Men in lower left corner is Bermuda springing crew. Fencing crew is busy also."