01582oam 2200457 450 991070709040332120180706140923.0(CKB)5470000002460580(OCoLC)1041143111(OCoLC)995470000002460580(EXLCZ)99547000000246058020180620d2018 ua 0engurc||||||||||txtrdacontentcrdamediacrrdacarrierCoal vein: a guided nature trail[Washington, D.C.] :National Park Service, U.S. Department of the Interior,[2018?]1 online resource (8 unnumbered pages) color illustrations"Theodore Roosevelt National Park.""This trail brochure was written and produced by the rangers of Theodore Roosevelt National Park."--Page [8].Coal veinTrailsNorth DakotaTheodore Roosevelt National ParkOutdoor recreationNorth DakotaTheodore Roosevelt National ParkOutdoor recreationfastTrailsfastTheodore Roosevelt National Park (N.D.)North DakotaTheodore Roosevelt National ParkfastTrailsOutdoor recreationOutdoor recreation.Trails.United States.National Park Service,GPOGPOGPOBOOK9910707090403321Coal vein: a guided nature trail3293097UNINA