Area 122 covers the country east of Casper in the southwestern Powder River Basin, including the country running toward Edgerton, Midwest, and the Salt Creek oil field. Elevations run from about 4,800 feet on the basin floor to 6,500 feet on the higher benches. The country is rolling sage prairie with scattered eroded breaks, irrigated alfalfa and hay along the North Platte River and tributary creeks, and the Salt Creek oil field complex—one of the most productive oil fields in Wyoming history, in continuous production since 1889. Pumpjacks, gas plants, and lease roads dominate sections of the country. Cottonwood-and-willow creek bottoms run through Salt Creek and the surrounding drainages. BLM, state trust, and significant private ranch and energy holdings share the country. The HMA and Walk-In programs add access. WY-387, WY-259, and county roads frame the access. Casper is the full-service supply hub south on I-25; Midwest and Edgerton are smaller waypoints with limited services. Cell service is fair on highways and in the developed energy country. Antelope rifle in October is the headline; the open sage holds strong pronghorn density. Mule deer in the breaks; whitetail in the cottonwood bottoms. Energy traffic is part of the experience—you'll share roads with crew trucks, water haulers, and the like. Wind is constant.