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Our Facility

The Range Cow Research Center is used for cattle nutrition and reproduction research studies. It is also used in cooperative studies with researchers in Veterinary Medicine and Entomology. It consists of two ranges; North and South Cow Research Ranges. Most of the acreage surrounds Lake Carl Blackwell, which is west of Stillwater, Oklahoma.

Our Purpose

The Range Cow Research Center is focused on providing applied research answers, timely extension educational programs and hands-on cow/calf management experiences for graduate and undergraduate students. The research program includes component projects as well as systems studies investigating beef cow nutrition, reproduction, genetics, carcass quality and associated interactions.
Research capabilities include replicated pasture experiments, replicated pen studies including water intake, individual feed intake and feed efficiency measurement, individual beef cow supplementation and greenhouse gas measurement for individual animals.

North Cow Research Range

Our Facilities

The North Cow Research Range consists of approximately 2,700 acres. Native pasture and hay meadow constitutes about 2,500 acres with the remainder in Bermuda grass.

There are two working facilities with scales in the area. In addition, there is a calving barn and storage buildings in the headquarters area.

Our Herd

The unit supports approximately 240 cows and is the location of our beef cattle breeding research program.

Herd Manager

Have questions? Contact the herd manager for the North Cow Research Range.


Herd Manager: Jay Edens

South Cow Research Range

Our Land

The South Cow Research Range consists of approximately 3,200 acres of native range (15% wooded) and 250 acres of bermudagrass. The range area is divided mostly into 100 to 160-acre pastures.


Pastures are in four main tracts: 640 acres, About 600 acres north of the lake, 380 acres in a single pasture and additional land with the “headquarters” area.

Our Herd

The herd is comprised of approximately 300 beef cows (Hereford and Hereford-Angus), 10 bulls, and 65 replacement heifers. About 90 cows calve in the fall and the remainder in the spring.


Cattle inventories of research leaders are combined and selected for projects according to most appropriate breed, age, weight, condition, etc.

Herd Manager

Have questions? Contact the herd manager for the South Cow Research Range.


Herd Manager: Mike Major

  • Highway 86 Area

    The Highway 86 area has an individual feeding barn identical to those at the headquarters, covered cattle scales and working facilities and limited, but adequate, permanent cattle sorting facilities. The 380-acre pasture located just west of this area is used only for temporary grazing of cattle. Section 32 has one permanent holding pen for small groups of cattle.


    Weighing is conducted with portable scales and corral equipment. This area is used primarily for less intensive studies because of its lack of facilities.

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