The Western San Juan Mountains: Their Geology, Ecology, and Human History

Contents

CONTENTS Maps Foreword Preface Acknowledgments PART I vii IX XI xii PHYSICAL ENVIRONMENT ALONG THE SANJUAN SKYWAY Chapter I Origin of Landscapes, Rob Blair 3 Chapter 2 Paleotectonic History, Douglas C. Brew 18 Chapter 3 Precambrian Rocks, Jack A. Ellingson 38 Chapter 4 Paleozoic History, John A. Campbell 44 Chapter 5 Mesozoic and Early Cenozoic History, John A. Campbell and Douglas C. Brew 54 Chapter 6 Volcanic Rocks, Jack A. Ellingson 68 Chapter 7 Ore Deposits and Minerals, Scott Fetchenhier 80 Chapter 8 Energy Resources, T. L. Britt and J. M. Hornbeck 96 Chapter 9 Weather and Climate, Richard A. Keen 113 PART II BIOLOGICAL COMMUNITIES ALONG THE SAN JUAN SKYWAY Chapter 10 Ecological Patterns, Albert W. Spencer and William H. Romme 129 Chapter 11 Biotic Communities of the Semiarid Foothills and Valleys, Lisa Floyd-Hanna, Albert W. Spencer, and William H. Romme 143 Chapter 12 Biotic Communities ofthe Cool Mountains, David W Jamieson) William H. Romme, and Preston Somers 159 Chapter 13 Wetlands, Riparian Habitats, and Rivers, Preston Somers and Lisa Floyd-Hanna 175 v vi The Western San Juan Mountains PART III HUMAN HISTORY ALONG THE SANJUAN SKYWAY Chapter 14 Chapter 15 Chapter 16 Chapter 17 Chapter 18 The Foragers of the Forest, Philip Duke The Anasazi: Prehistoric Farmers, Gary Matlock The Spanish, Richard N. Ellis The Utes, Richard N. Ellis The Miners: "They Builded Better Than They Knew," Duane A. Smith PART IV POINTS OF INTEREST AROUND THE WESTERN SAN JUAN MOUNTAINS Chapter 19 Points of Interest Along the 193 201 215 225 234 San Juan Skyway, Rob Blair 259 Chapter 20 Points of Interest Along the Durango-to-Silverton Narrow-Gauge Railroad, Rob Blair 348 Chapter 21 Points of Interest Along the Alpine Loop, Barbara Byron 351 Glossary 365 Contributors Index 373 377 ...