This book contains the record of a few of the many happy days and novel experiences which the author has had in the wilds. For more than twenty years, it has been the author's good fortune to live most of the time with nature, on the mountains of the West. He has made scores of long exploring rambles over the mountains in every season of the year, a nature-lover charmed with the birds and the trees. On his later excursions, the author has gone alone and without firearms. He has also scaled many of the higher peaks of the Rockies and made many studies on the upper slopes of these mountains.