.0 SEDIMENTARY ROCKS OF PRE-PENNSYLVANIAN PALEOZOIC AGE SOUTHERN FRONT RANGE AND WET MOUNTAINS M_ LEADVILLE LIMESTONE (MISSISSIPPIAN), WILLIAMS CANYON LIMESTONE (DEVONIAN), MANITOU LIMESTONE (ORDOVICIAN), AND SAWATCH QUARTZITE (CAMBRIAN) MDO LEADVILLE LIMESTONE, WILLIAMS CANYON LIMESTONE, AND ONE OR MORE ORDOVICIAN FORMATIONS: FREMONT LIMESTONE, HARDING SANDSTONE, AND MANITOU LIMESTONE DO_ WILLIAMS CANYON LIMESTONE, MANITOU LIMESTONE, AND SAWATCH QUARTZITE O_ MANITOU LIMESTONE AND SAWATCH QUARTZITE Or ONE OR MORE ORDOVICIAN FORMATIONS--Fremont Limestone, Harding Sandstone, and Manitou Limestone WEST-CENTRAL AND SOUTH-CENTRAL MD LEADVILLE LIMESTONE (MISSISSIPPIAN), GILMAN SANDSTONE (MISSISSIPPIAN OR DEVONIAN), DYER DOLOMITE (MISSISSIPPIAN? AND DEVONIAN), AND PARTING FORMATION (DEVONIAN, QUARTZITE AND SHALE) O_ ONE OR MORE ORDOVICIAN FORMATIONS (FREMONT LIMESTONE, HARDING SANDSTONE, AND MANITOU DOLOMITE), DOTSERO FORMATION (CAMBRIAN, DOLOMITE; IN WHITE RIVER PLATEAU ONLY), PEERLESS FORMATION (CAMBRIAN, SANDSTONE AND DOLOMITE), AND SAWATCH QUARTZITE (CAMBRIAN)