Photograph of a scene on Birdie Coker's farm.

Photograph of cooperating farmers andSoil Conservation Service Conservationist examining nodular development on roots of sweet clover plants. This patch, 8 1/2 acres sown in fall in a strip on the contour will be utilized as seed and soil building crop.

Photograph of an UNIDENTIFIED man kneeling and looking over contour ridges constructed with a long wing Kelly plow on July 16, 1941. The back of the photograph proclaims, "Contour ridges constructed July 16, 1941 in pasture with long wing Kelly plow."

Photograph of deep mud cracks in recent deposition on Salt Creek lood plain.

Photograph of deep silt on Lalt Creek flood plain. Not fence posts almost covered. The rate of deposition is so rapid that weeds cannot establish themselves on extensive areas of the flood plain in the lower half of this watershed.

Photograph of Stubble Mulch Field Day. This is one of the plots used for the Stubble Mulch and Field Day Contest. OK-2124-7.

Photograph of equipment taken on Agronomy & Stubble Mulch Field Day. Shown is one of the sweeps owned by Bart Jones that was used in a stubble mulch demonstration. OK-2124-8.

Photograph of flooded alfalfa field from overflow of N. Canadian River.

Photograph of Bermuda grass pasture. Old, established Bermuda grass, Class IIIa-6, Upland. Sprayed in 1958 and 1959 with 2,4-D weed killer, 1 pint per acre. OK-937-2.

Photograph of pasture seeding. Buffalo grass seeded in 1950 on overflow bottom of Clear Boggy Creek. Soil Unit 3ab. This grass shows good possibilities on this type of soil and is recommended by the Soil Conservation Service [SCS] for these areas. Mr. Krebs and C. T. Forrester, SCS and Work Unit Conservationist [WUC], respectively, in the picture. OK-534-1.

Photograph of Class I land untreated, closely drilled to oats. Large closely stacked shocks of grain indicate profitable yield. Due to long slope, the field will be terraced for water conservation. Less than 1% slope. Olustee, silty, clay loam. OK-8180.

Photograph of pasture seeding. Showing the length of the stolons on Buffalo grass. Grass planted on overflow bottom of Clear Boggy Creek. Grass is recommended by the Soil Conservation Service [SCS] for tight soils in overflow area. OK-534-2.

Photograph of completing construction of border irrigation system. The borders are on a 50 foot spacing in this project. The water for the system will come from 3 wells which produce 2500, 1700 and 700 gallons per minute. This system was designed and supervised by the Soil Conservation System.

Photograph of construction being completed of a border irrigation system. The borders are on a 50 foot spacing in this project. The water for the system will come from 3 wells which produce 2500, 1700 and 700 gallons per minute. This system was designed and supervised by the Soil Conservation System.

Photograph of Little Bluestem in phytometers, clipped at 3 diffeent levels weekly during growing season.

Photograph of an aerial shot of Mill Creek Site 1 Drop Inlet and the surrounding area. The back of the photograph proclaims, "Watershed: Ok-SCD-20 Wa. #5. Site #1. Type of structure: Drop Inlet. Drainage area: 57 acres. Soul units: Deep medium textured slowly permeable & permeable soils. All in pasture. General condition: Good cover but large active gullies. Protects Detention Reservoir, Site #1 and bottomland from silt."

Photograph of an aerial shot of Mill Creek Site 1 Drop Inlet and the surrounding area. The back of the photograph proclaims, “Watershed: Ok-SCD-20 Wa. #5. Site #1. Type of structure: Drop Inlet. Drainage area: 57 acres. Soul units: Deep medium textured slowly permeable & permeable soils. All in pasture. General condition: Good cover but large active gullies. Protects Detention Reservoir, Site #1 and bottomland from silt.”

Photograph of an aerial shot of a diversion terrace for Site 6 Mill Creek and the surrounding area. A farmstead with several buildings is located in the bottom part of the photograph. The back of the photograph proclaims, “Watershed: Ok-SCD-20 Wa. #5. Site #6. Type of structure: Diversion terrace for Site #6. Drainage area: 155 acres (90 acres in pasture, 65 acres in cropland). General condition of drainage area: Severely eroded, gully & sheet. Acres of bottomland protected: 90 acres (Protects bottomland & Detention Reservoir #1 from silt).”

Photograph of proper land use of land below dam at Site no. 13 Mill Creek watershed. The back of the photograph proclaims, "Land below dam at Site no. 13 Mill Creek watershed. This land is now useable due to the protection giver by the completion of the structure. A waterway was built to remove excess spillway water and the adjoining land is now used for crops. Note the corn crop."

Photograph of proper land use of land below dam at Site no. 13 Mill Creek watershed. The back of the photograph proclaims, "Land below dam at Site no. 13 Mill Creek watershed. This land is now useable due to the protection giver by the completion of the structure. A waterway was built to remove excess spillway water and the adjoining land is now used for crops. Note the corn crop."

Photograph of proper land use of land below dam at Site no. 13 Mill Creek watershed. The back of the photograph proclaims, "Land below dam at Site no. 13 Mill Creek watershed. This land is now useable due to the protection giver by the completion of the structure. A waterway was built to remove excess spillway water and the adjoining land is now used for crops. Note the corn crop."

Photograph of Red Prairie Range Site in excellent condition. Dominant vegetation-switchgrass with little bluestem, big bluestem, Indiangrass, sideoats grama.

Photograph of sand deposits in Cult. Land subject to overflow of Lebos (sandy) Creek, tributary of Red River. Cow peas are planted in the straight rows. Yohole V. F. S. L.

Photograph of an aerial shot of Site #6 Mill Creek Watershed #12 and surrounding area. A house and a couple of buildings are near the lower left of photograph. The back of the photograph proclaims, "Watershed: Ok-SCD-20, Wa #12, Site #1. Type of structure: Detention Reservoir. Drainage Area: 1440 acres (in pasture). Soil Units: Deep fine textured, slowly permeable soils. Condition of drainage area: 68% good native grass range, 32% fair native grass range. Peak flow: 2740 c.f.s. Release Rate: 35 c.f.s. Acres of bottomland protected: 160 acres immediately below in addition to part of system benefit on Mill Cree [sic]. Detention Reservoir located in hill pasture above flood plain."