00592cam a2200193 4500 445897086 TxAuBib 20070228120000.0 960718|||||||||||||||||||||||||||||eng|u 9780870442711 0870442716 McBain Community Library TxAuBib America's majestic canyons. National Geographic Society. 207p.; index; color illus;bibl. 20070228. CANYONS - UNITED STATES. UNITED STATES - DESCRIPTION AND TRAVEL.