Photograph of a mesquite eradication studies program on the Jay Taylor ranch showing a sparse stand of mesquite, with good blue grama grass. Dead limbs of mesquite may be seen. Notice the two automobiles on the trail. Section 28. TX-1690.

Photograph of two UNIDENTIFIED men standing in a class III rangeland. The back of the photograph proclaims, “Class III range land. Blue grama grass is very low state of vigor. Invaders are numerous including muhly grass, fluff grass, three-awn, and perennial broomweed. Erosion, moderate to severe indicating that permanent damage is occurring. Recovery on this type of range will be slow, although much change toward the more desirable species can be expected when the use of range is based upon preserving the grama grasses.”

Photograph of class IV Land Clearance, Cultivation & Brush and Weed Control. Blue grama practically all gone. Most of the sparse vegetation is annual, principally 6-week grama, false buffalo and goat hand, although still remains traces of blue grama, tobosa and burro grass with a scattering of Sphaeralcea angustifolia. Severe erosion. Maria Silty Clay Loam. TX-40, 445.

Photograph of a hand of an UNIDENTIFED person showing off a Class I Range Land producing excellent forage. The back of the photograph proclaims, “Class I Range Land producing maximum forage. Range has been under continuous use and can increase in grazing without damage to range. Range is pure stand of blue grama grass this is in a vigorous condition producing large amount of forage. Only traces of undesirable species such as muhly grass, three-awn, and fluff grass. No erosion."

Photograph of an UNIDENTIED man examining a Class I Range Land producing maximum forage. The back of the photograph proclaims, "Class I Range Land Producing Maximum Forage. Range has been under continuous use and can stand increase in grazing without damage to range. Range is pure stand of blue grama grass that is in a vigorous condition producing large amount of forage. Only traces of undesirable species such as muhly grass, three-awn, and fluff grass. No erosion."

Photograph of two UNIDENTIED men examining a Class II Rangeland. A herd of cows is behind the barbed wire fence in background. The back of the photograph proclaims, "Class II Range Land. Grass on this range land is not thick as that on the Class I range, indicating low vigor. A few undesirable species are coming in principally muhly grass, three awn and perennial broomweed. Rapid recovery will be expected under safe use for permanent damage has not occurred. Slight sheet erosion."

Photograph of a hand of an UNIDENTIFED person showing off a Class IV Range Land. The back of the photograph proclaims, "Class IV Range Land. Blue grama technically all gone. Most of space vegetation is […], principally 6-week grama, false buffalo and […], although still remains traces of blue grama […] and burro grass with scattering of Sphaeralcea angustifolia. Severe erosion. Marfa Silty Clay Loam."

Photograph of a close-up view of Class II rangeland. The back of the photograph proclaims, “This picture shows Class II Range Land. Close-up view. Grass on this range is not as thick as that on the Class I range, indicating low vigor. A few undesirable species are coming in principally muhly grass, three-awn and perennial broomweed. Rapid recovery will be expected under safe use for permanent damage has not occurred. Slight sheet erosion. (Range is principally blue grama.)"

Photograph of a close-up view of class III rangeland on W. B. Mitchells Sons Ranch. The back of the photograph proclaims, "Class III Range Land. Blue grama grass in very low state of vigor. Invaders are numerous including muhly grass, fluff grass, three-awn, and perennial broomweed. Erosion, moderate to severe indicating that permanent damage is occurring. Recovery on this type of range will be slow, although much change toward the more desirable species can be expected when the use of range is based upon preserving the grama grasses."

Photograph of flood damage caused by overflow waters of Cottonwood River. Over 5 blocks of Hwy. 33 in Gruthrie, Oklahoma, were covered by water for 12 hours, causing approx. 100 families to leave their homes. Enormous damage was done to crops, soils, highways, bridges and other public and private property. Buildings on the left belong to the Mid-Continent Petroleum Company and tracks of the railroadf spur line are completely covered by water. Note flooded homes and yards in background.

Photograph of steers on cleared and controlled area of the East farm, Red Plains Experiment Station. Note the area to right in uncontrolled scrubby oak growth. Steers placed on pasture May 1, 1941. OK-8712.

Photograph of steers on a cleared and controlled area of the East farm. Note the area to the right in an uncontrolled scrubby oak growth. Steers placed on the pasture on May 1, 1941. OK-8712.

Photograph of flood damage caused by overflow waters of Cottonwood Creek. Over 5 blocks of Highway # 33 in Guthrie, Oklahoma were covered by water for 12 hours, causing approx. 100 families to leave their houses. Enormous damage was done to crops, soils, highways and bridges and other public and private property. Buildings on the left belong to the Mid-Continental Petroleum Company and tracks of the railroad spur and yards in the background. OK-8327.

Photograph of a roadside erosion control project site. The road is to be resectoned and the waterway will be prepared to carry both roadside water and the excess from terraced land. To be followd with later pictures. Chickasha Project, Yukon Camp.

Photograph of seven UNIDENTIFED people watching a eighth UNIDENTIFIED man build a channel type terrace with #2 Terracer and TD-40 Tractor. The back of the photograph proclaims, "Building channel type terrace with TD-40 Tractor and #2 Terracer. 5th through. The roll of dirt from the 3d through was moved into the ridge on the 4th through. In this 5th through the blade is set flat, cutting another 24" slice to same depth and moving dirt as far downhill as power will permit."

Photograph of an UNIDENTIFED man watching another UNIDENTIFIED man build a channel type terrace with #2 Terracer and TD-40 Tractor. The back of the photograph proclaims, "Building channel type terrace with TD-40 tractor and #2 terracer. 9th through. The roll of dirt from the 7th through has been moved into the ridge on the 8th through. Notice the shape of the ridge at this stage. On this 9th through the blade is backsloping with heel of blade set at previous 12"cutting depth and toe of blade about 5" below ground surface. "10th & 11th Through moves this last roll into the ridge and the terrace is comp[lete]."

Photograph of two UNIDENTIFED men using a 5' Texas Terracer and farm tractor to build a channel type terrace. The back of the photograph proclaims, "Building channel type terrace with 5' Texas terracer and farm tractor. 3d through. Beginning second round with blade set nearly flat, cutting and moving dirt downhill."

Photograph of an UNIDENTIFED man using a 5' Texas Terracer and farm tractor to build a channel type terrace. The back of the photograph proclaims, "Building channel type terrace with 5' Texas terracer and farm tractor. 15th through. Cutting and moving process has been continued until plowed channel line has been reached."

Photograph of seven UNIDENTIFIED people watching two UNIDENTIFED men on a tractor and plow making the first dump for the construction of a channel type terrace. The back of the photograph proclaims, "Building channel type terrace with plow, 5' Fresno and Farm Tractor. 1st through with drag. Making the first dump. Note that Fresno is loaded and dumped at right angles to the plowed strip and the axis of the terrace."

Photograph of three UNIDENTIFED men standing on a channel type terrace, plowed by a 5' Fresno and farm tractor. The back of the photograph proclaims, "Building channel type terrace with plow, 5' Fresno and Farm Tractor. 2nd round with the Fresno completed. Two drags have been made across each part of the plowed area. Notice the ridge, channel, and the unplowed strip just above the ridge."

Photograph of nine UNIDENTIFED people watching a tenth UNIDENTIFIED man build a channel type terrace with #2 Terracer and TD-40 Tractor. The back of the photograph proclaims, "Building channel type terrace with TD-40 Tractor and #2 Terracer. 3d through. First through was made 6 ft. below staked channel line, cutting 12" deep with blade as flat as power would permit. On the second trip, the roll of dirt was moved as far downhill as possible to form the toe of the ridge. In this 3d through, blade is cutting slice 24" wide to same depth as previous cut and is set nearly flat."

Photograph of three UNIDENTIFED people watching a fourth UNIDENTIFIED man build a channel type terrace with #2 Terracer and TD-40 Tractor. The back of the photograph proclaims, "Building channel type terrace with TD-40 tractor and #2 terracer. 7th through. The roll of dirt from the 5th through has been moved into the ridge on the 6th through. Notice shape of back side of bridge as shown by the rope. In this 7th through, the blade is set flat, cutting the final 24" slice to the same depth."

Photograph of an UNIDENTIFED man building a channel type terrace with a #2 terracer and TD-40 tractor. A second UNIDENTIFED man stands watching in the background on the far right. The back of the photograph proclaims, "Building channel type terrace with TD-40 tractor and #2 Terracer. 11th through. It required two throughs, the 10th and 11th to move the dirt from the backsloping trip into the ridge. With 12' blade, this can be done in one through, and one less cutting round is required if power is ample. Notice final shape of terrace. Construction data: 3% slope; good soil condition (find [sic] sandy loam); length 330 feet; 5 ½ rounds; time 50 minutes; effective height 1.5'; channel cross-sectional area 18.5 square feet."

Photograph of two UNIDENTIFED men using a 5' Texas Terracer and farm tractor to build a channel type terrace. The back of the photograph proclaims, "Building channel type terrace with 5' Texas terracer and farm tractor. 5th through. Blade tilted slightly, beginning to form the ridge."