Area 129 covers the country in the southeastern Powder River Basin around Lance Creek, Manville, and the country running between Lusk and Newcastle—rolling sage prairie, eroded badlands and breaks, and creek bottoms cutting through the country. Elevations run from about 4,200 feet on the basin floor to 5,500 feet on the higher benches. The country is open eastern Wyoming prairie: big sagebrush and bunchgrass on the flats, scattered ponderosa pine and juniper on the breaks, eroded badland formations of red and white clay where the Cheyenne River and Lance Creek have cut through softer formations, and cottonwood-and-willow ribbons along the creek bottoms. Lance Creek is fossil country—the dinosaur and mammal beds in the Lance Formation made paleontology history in the late 1800s and early 1900s. BLM, state trust, and significant private ranch share the country with HMA and Walk-In access. WY-270, US-18/20, and county roads frame the access. Lusk and Newcastle are the local supply towns; Manville is barely there. Cell service is fair on the highways. Antelope rifle in October is the bread-and-butter; the open prairie holds excellent pronghorn density. Mule deer in the breaks and pine-edge country; whitetail in the creek bottoms. The country is genuinely empty—you can drive county roads all day without seeing another truck. Wind blows hard, the horizon is open, the badlands hold the eye.