The Southern Plains Range Research Station (SPRRS) has its main campus located in Woodward, OK. This location includes about 480 acres of federal, 280 acres of state, and 160 acres of county property. There are approximately 10 significant buildings including offices, laboratories, greenhouses, and maintenance buildings.

The Southern Plains Experimental Range (SPER) is located about 15 miles from Woodward near the town of Fort Supply. This research ranching facility utilizes about 4300 acres of federal land.

Both locations are located near the North Canadian river and have sandy soils derived from the river. The native plant community is primarily the sand sage mixed grassland which is dominated by sand sage (Artemisia filifolia) and several mid- and short-grasses such as sand bluestem (Andropogon hallii), little bluestem (Schizachyrium scoparium), sand dropseed (Sporobolus cryptandrus), and blue grama (Bouteloua curtipendula). Important broadleaved plants include Western ragweed (Ambrosia psilostachya), silverleaf nightshade (Solanum elaeagnifolium), and camphorweed (Heterotheca subaxilaris)