TY  - GEN
AU  - National Geographic Society (U.S.). Special Publications Division.
TI  - America's majestic canyons
SN  - 9780870442711
AV  - GB 563
PY  - 1984///
PB  - MapQuest.com
KW  - Canyons - United States
KW  - United States - Description and travel
N1  - 29685
ER  -