Photograph of class VII land consisting of rough broken land. The river channel in the background is class VIII land consists of river wash.

Photograph of class VII land consisting of limestone, dolomite, and gypsum.

Photograph of "Class II land. Level ridge-type terraces constructed on gently sloping heavy textured soils to conserve moisture and soil." A barn or house is in the distant background.

Photograph of a pasture on Vernon clay infested with mesquite. Eradication of the mesquite would aid in improving the native stand of buffalo and grama grasses.

Photograph of Vernon clay with wind erosion in the foreground and rough, broken land (Vernon soil material) is in the background, consisting of exposures of “red Buds” shale and are of low value as pasture land. OK-8402

Photograph of a v-type gully.

Photograph of old vegetation at the Red Plains Experiment Station. The old vegetation, after moving mature grass plants, provided a mulch which reduces erosion. This mulch creates a silt deposit and attention is called to the young grss seedlings which are emerging. This is important on badly eroded abandoned areas which are being revegetated. OK-8349.

Photograph of a control plot, Red Plains Experiment station. Average annual soil loss from the Bermuda grass plot, bare hard fallow plot and de-surfaced plot. About 10 inches of the surface soilwas removed from the de-surfaced area in 1929 when the experiment was started. This area has been planted to continuous cotton with rows up an down the slope. OK-3348.

Photograph of a Marsh Hawks Nest (Circus hudsonius) located in tall grasses of a draw in a mixed-grass pasture, which has been "rested" for 5 years. 11 pellets picked up from around the nest and analyzed by Denver Laboratory of U.S. Biological Survey were composed as follows: 3 cotton-rat (Citellus 13-lineatus), 1 house mouse (Muz musculus), 1 horned-lark (Otocoris), and 1 mouse (Mus) and bird (sparrow?). Original Negative size 9 x 12 cm.

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.

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.

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 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 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 gully control by fencing, sloping tree planting and protection from grazing in fall of 1937. Gully banks were sloped and trees planted. Trees have made some growth and other vegetation is becoming well established due to protection from grazing.

Photograph of masonary arch drop, gully control terrace outlet channel. Masonry structure was built latter part of 1937 in natural wash, badly gullied to accelerate silting for erosion stabilization. Outlet channel on right is now well vegetated, providing safe watersay and former active erosion behind structure is almost 100%.

Photograph of masonary arch drop, gully control terrace outlet channel. Masonry structure was built latter part of 1937 in natural wash, badly gullied to accelerate silting for erosion stabilization. Outlet channel on right is now well vegetated, providing safe watersay and former active erosion behind structure is almost 100%.

Photograph of strips of native grass consisting of Blue grama and little bluestem on contour. A house sits in both the immediate and distant background of this photograph. The back of this photograph proclaims, “Strips of Native Grass on Contour Blue gramma [sic] and Little bluestem. Area on left retired from cultivation and grass becoming established. Cultivation continues between strips to provide income from land while grass becomes established. Strips planted spring of ’37 at rate of 30# to A after preparation of seed bed. Vernon F. S. L. 3 to 4% slope.”

Photograph of strips of native grass consisting of Blue grama and little bluestem on contour. A house sits in both the immediate and distant background of this photograph. The back of this photograph proclaims, "Strips of Native Grass on Contour Blue gramma [sic] and Little bluestem. Area on left retired from cultivation and grass becoming established. Cultivation continues between strips to provide income from land while grass becomes established. Strips planted spring of '37 at rate of 30# to A after preparation of seed bed. Vernon F. S. L. 3 to 4% slope."

Photograph of African lovegrass sown in March 1940 and planted in rows on land retired to pasture. A house and windmill sit dead center in the background of the photograph. The back of the photograph proclaims, "African Love Grass in rows on land retired to pasture. Very sandy land. Sown in March 1940 at rate of 5# per acre Stevensville soil, 2% slope."

Photograph of a "Windbreak and post lot consisting of Chinese elm and catalpa trees. Trees were set out about 1937." A building and car sit just to the right of the windbreak and post lot.

Photograph of CCC Enrollees helping to construct a wooden concrete form for making a watering trough. Okla-8062.

Photograph of a constructed drop inlet constructed where an unsafe bridge used to stand to stabilize erosion from gully. The back of the photograph proclaims, "Highway Erosion Control. Unsafe bridge eliminated and drop inlet constructed, (Highway Commission, WPA, and SCS cooperation) to allow deep gully to silt in, thus stabilizing erosion. Stock will also be watered here as water gathers in basin."