Crump Lake is owned and managed by the Oregon Department of State Lands. Large sections of the Warner Valley around the lake are also publicly owned. The Bureau of Land Management is responsible for much of this land. In addition, the land along the north side of the lake is part of the Hart Mountain Antelope Refuge which is administered by the United States Fish and Wildlife Service. These public lands offer numerous recreational opportunities including fishing, bird watching, boating, hunting, and camping. However, some of these activities are dependent on the water levels of the Warner Lakes system, which can fluctuate dramatically from year to year.