Photograph of boating and water skiing can be enjoyed on Cobb Creek floodwater retarding structure No. 1.

Photograph of prarrie cordgrass (first grass in front of sign) vine Mesquite (second grass in front of sign) and alkali sacaton (foreground) in impoundment basin number 4 at a depth of 1.0 foot following two floodings of 10 days during early spring (3/22-4/1/62) and mid-spring (5/3-13/62). There was no evidence of damage to any of the grasses, except a very slight suppression of growth. For a view of this grass when flooded at same time, except at a depth of 5.0 feet, see Ok-1760-7, dated 6/8/62. This research is under the supervision of Edd D. Rhoads, Agricultural Engineer, ARS-SWC.

Photograph of prarrie cordgrass (in front of sign) in impoundment basin number 6 at a depth of 5.0 feet following two floodings of 20 days during early spring (3/21-4/10/62) and mid-spring 5/2-22/62). Note the severe suppression of growth. For a view of this grass when flooded at same time, except at a depth of 1.0 foot, see Ok-1760-2, dated 6/6/62. Grass in foregound is vine mesquite, which was only slightly damaged from the foregoing inumdation. This research is under the supervision of Edd D. Rhoads, Agricultural Engineer, ARS-SWC.

Photograph of of weeping lovegrass in impoundment basin number 4 with sign at a depth of 0.5 foot, following two floodings of 10 days, during early spring (3/22-4/1/62) and mid-spring (5/3-5/13/62). Note that all grass to the right of the sign (less than 0.5 foot depth) survived and all grass to the left was killed. This research is under the supervision of Edd D. Rhoads, Agricultural Engineer, ARS-SWC.

Photograph of a tentative range site is Rocky prairie. Excellent condition Dolomite limestone rock with pockets of deep fertile soil between outcrops. Dpminant vegetation is big and little bluestem and Indiangrass.

Photograph of a closeup of KR bluestem in impoundment basin number 4 at a depth of 0.5 foot, following two floodings of 10 days, during early spring (3/22-4/1/62) and mid-spring (5/3-13/62). Note that all grass to the right of the middle board (excess of 0.5 foot depth) was killed and that all grass to the left of the middle of the board (less than 0.5 foot depth) survived. This research is under the supervision of Edd D. Rhoades, Agricultural Engineer, ARS-SWC.

Photograph of a closeup of buffalograss (in front of sign) in impoundment basin number four at a depth of 1.0 foot following two floodings of 10 days during early spring (3/22-4/1/62) and mid-spring (5/3-13/62). There was no apparent damage to the grass at this depth. For view of this grass when flooded for the same duration at a depth of 1.0 foot, see Ok-1760-9 dated 6/8/62. This research is under the suervision of Edd D. Rhoades, Agricultural Engineer, ARS-swc.

Photograph of broomcorn stalks are being raked into windrows and burned rather than being turned under. Picture taken at dusk. Other fires in the background can be seen.

Photograph of a closeup of buffalograss (in front of sign) in impoundment basin number four at a depth of 5.0 feet following two floodings of 10 days during early spring (3/22-4/1/62) and mid-spring (5/3-13/62). There was a severe suppression of growth with approximately 25 percent of the top growth killed. This grass had recovered very well at the date of this photograph. For view of this grass when flooded for the same duration at a depth of 1.0 foot, see Ok-1760-10 dated 6/8/62. This research is under the suervision of Edd D. Rhoades, Agricultural Engineer, ARS-swc.

Photograph of a close-up of prarrie cordgrass (behind sign) in impoundment basin number 6 at a depth of 1.0 foot following two floodings for 20 days during early spring (3/21-4/10/62) and mid-spring (5/2-22/62). Very little damage to grass was observed at this depth. For a view of this grass when flooded at same time, except at a depth of 5.0 feet, see Ok-1760-1, dated 6/8/62. Grass in foregound is vine mesquite, which was apparently not damaged from the foregoing inumdation. This research is under the supervision of Edd D. Rhoads, Agricultural Engineer, ARS-SWC.

Photograph of buffalograss (in front of sign) in impoundment basin number 6 at a depth of 1.0 foot following two floodings of 20 days during early spring (3/21-4/10/62) and mid-spring (5/2-22/62). Moderate suppression of growth resulted with approximatelyt 25 percent fo top growth killed during the mid-spring flooding. All grass at this depth had recovered very well at date of this photograph. For a view of this grass when flooded at same time, except at a depth of 5.0 feet, see Ok-1760-3, dated 6/8/62. This research is under the supervision of Edd D. Rhoads, Agricultural Engineer, ARS-SWC.

Photograph of prarrie cordgrass (first grass in front of sign) in impoundment basin number 4 at a depth of 5.0 feet following two floodings of 10 days during early spring (3/22-4/1/62) and mid-spring (5/3-5/13/62). There was a moderate suppression of growth and no killing wo the prarrie cordgrass at this depth. There was no apparent damage of the vine mesquite at this depth. Alkali sacaton in the foreground was all killed. For view of these grasses when flooded for the dame duration at a depth of 1.0 foot, see Ok-1760-8, dated 6/8/62. This This research is under the supervision of Edd D. Rhoads, Agricultural Engineer, ARS-SWC.

Photograph of boating and water skiing can be enjoyed on Cobb Creek floodwater retarding structure No. 1.

Photograph of a rocky prairie site with Dolomite limestone rocks in excellent condition on South Ranch. The back of the photograph proclaims, "Tentative site is Rocky prairie. Excellent condition. Dolomite limestone rock with pockets of deep fertile soil between outcrops. Dominant vegetation is big and little bluestem and Indiangrass."