00762cam a2200217 4500 212477762 TxAuBib 20150413120000.0 150413s1978||||||||||||||||||||||||eng|u 9780912001005 0912001003 TxAuBib Hiker's Guide [paperback] : to trails of Big Bend National Park. Big Bend Natural History Association, 1978. 30 pages : illustrations, maps ; 14.5 cm. Big Bend National Park, Tex. : Big Bend Natural History Association in cooperation with the National Park Service,. 20150413. Hiking Texas. Hiking. TXLMP