Bureau of Land Management Foundation Act This bill establishes the Bureau of Land Management Foundation as a charitable, nonprofit organization to encourage, accept, obtain, administer, and use private gifts of money, devises, and bequests of real and personal property for the benefit of, or in connection with, the activities and services of the Bureau of Land Management (BLM). The foundation shall conduct and encourage programs and activities, including by awarding grants, that support: educational, technical, scientific, and other assistance or activities to support the management of BLM lands with regard to wild free-roaming horses and burros, fish and wildlife and their habitats, National Conservation Lands, and recreation, cultural, and historic resources; and activities that support the reclamation and remediation of specified abandoned mine lands, specified orphaned oil and gas well sites, or public lands impacted by development connected to mineral exploration and development activities. Reclamation activities are to include the remediation of soil and water contamination; the restoration of wildlife habitat in order to restore the natural, scenic, historic, cultural, and ecological values of those areas; or promotion of the areas' economic potential.