Paradox Basin  search
BTUnited States
 .Paradox Basin
RTNew Mexico
 Utah
 Colorado
 Arizona
 Bluff Formation
 Desert Creek Zone
 Four Corners
 Gibson Dome
 Ismay Zone
 Uncompahgre Uplift
SNIn the Four Corners area of the SW U.S. where the boundaries of 4 states intersect. Indexed with states as applicable.