CONTENTS
Page [Introduction] 1 [I Colorado’s Three Provinces] 3 [The Prairies] 8 [The Peaks] 10 [Front Range] 11 [Wet Mountains] 16 [Sangre de Cristo Range and Spanish Peaks] 17 [Park Range and Rabbit Ears Range] 19 [Gore Range] 20 [Tenmile and Mosquito Ranges] 21 [Sawatch Range] 22 [Elk Mountains and West Elk Mountains] 24 [San Juan Mountains] 25 [Uinta Mountains] 26 [The Plateaus] 28 [II Geologic History of Colorado] 32 [Precambrian Era] 33 [Paleozoic Era] 38 [Cambrian Period] 39 [Ordovician Period] 40 [Silurian Period] 42 [Devonian Period] 42 [Mississippian Period] 43 [Pennsylvanian Period] 44 [Permian Period] 48 [Mesozoic Era] 51 [Triassic Period] 51 [Jurassic Period] 52 [Cretaceous Period] 56 [Cenozoic Era] 59 [Tertiary Period] 59 [Quaternary Period] 68 [III Geology and Man in Colorado] 74 [Gold, Silver, and Other Metals] 77 [Boulder County] 79 [Central City and Idaho Springs] 80 [Georgetown, Empire, and Silver Plume] 81 [Leadville] 82 [Breckenridge] 83 [Fairplay] 84 [Silverton] 85 [Ouray] 87 [Aspen] 88 [Creede] 89 [Cripple Creek] 90 [Climax] 91 [Radium, Uranium, and Vanadium] 93 [Oil, Natural Gas, and Oil Shale] 94 [Coal] 96 [Construction Materials] 97 [Sand, Gravel, and Clay] 97 [Stone] 99 [Lime and Gypsum] 101 [Gems] 102 [Water] 103 [Surface Water] 103 [Groundwater] 105 [Caves] 106 [Springs] 109 [Environmental Geology] 111 [Glossary] 114 [Suggested Reading] 119 [Index] 121