The greater part of this book deals with nature and with my own experiences in the Rocky Mountains of Colorado. Some of the chapters in slightly different form have been printed in various publications. The _Saturday Evening Post_ published "The Grizzly Bear," "Wild Folk of the Mountain-Summits," "Wild Mountain Sheep," "Associating with Snow-Slides," "The Forest Frontier," "Bringing back the Forest," and "Going to the Top." _Country Life in America_ published "A Mountain Pony"; _The Youth's Companion_, "Some Forest History"; _Recreation_, "Drought in Beaver World"; and _Our Dumb Animals_, "My Chipmunk Callers." The editors of these publications have kindly consented to the publishing of these papers in this volume. E. A. M. LONG'S PEAK, ESTES PARK, COLORADO, January, 1915. Contents Going to the Top 1 Wild Mountain Sheep 21 The Forest Frontier 47 The Chinook Wind 67 Associating with Snow-Slides 77 Wild Folk of the Mountain-Summits 99 Some Forest History 123 Mountain Lakes 147 A Mountain Pony 167 The Grizzly Bear 185 Bringing back the Forest 209 Mountain Parks 227 Drought in Beaver World 247 In the Winter Snows 257 My Chipmunk Callers 275 A Peak by the Plains 293 The Conservation of Scenery 311 The Rocky Mountain National Park 333 Index 355 Illustrations _A Wild Garden in the Wonderland, on the Eastern Boundary-Line of the Rocky Mountain National Park_ _Frontispiece_ _The Narrows, Long's Peak Trail_ 14 _A Wild Mountain Sheep_ 40 _The Way of the Wind at Timber-Line_ 52 _A Timber-Line Lake in Northwestern Colorado_ 64 _Lizard Head Peak in the San Juan Mountains_ 84 _Photograph by George L. Beam._ _Alpine Pastures above Timber-Line, near Specimen Mountain in the Rocky Mountain National Park_ 104 _Photograph by John K. Sherman._ _At the Edge of the Arctic-Alpine Life Zone in the San Juan Mountains_ 116 _Photograph by George L. Beam._ _A Western Yellow Pine_ 126 _Crystal Lake; a Typical Glacier Lake_ 150 _Trapper's Lake_ 158 _Cricket, the Return Horse, at the Summit of the Pass_ 172 _Looking Eastward from Lizard Head_ 180