Wind River Administrative Site Conveyance Act This bill directs the Forest Service to convey to Skamania County inWashington, upon request of the county, all right, title, and interest of the United States in approximately 23.4 acres of National Forest System land, related infrastructure, and all improvements on the map titled Wind River Administrative Site Conveyance Proposal and dated February 7, 2020. The conveyance shall be made by quitclaim deed; subject to a right-of-way and restrictive easement reservation for the protection of the Pacific Crest National Scenic Trail; and completed in accordance with certain Forest Service conveyance requirements, except that certain market value requirements shall not apply. The Forest Service must meet specified disclosure requirements for hazardous substances, pollutants, and contaminants and shall not otherwise be required to remediate or abate the hazardous substances, pollutants, or contaminants disclosed. The lands and related infrastructure conveyed must be maintained by the county pursuant to standards established by the Department of the Interior regarding the preservation of historic property.