John Muir (1838-1914) was a Scottish-born American naturalist, writer, and an early member of the wilderness preservation movement in the United States. His activism helped to preserve the Yosemite Valley, Sequoia National Park and other wilderness areas. In this book, made up of sketches first published in the Atlantic Monthly, I have done the best I could to show forth the beauty, grandeur, and all-embracing usefulness of our wild mountain forest reservations and parks, with a view to inciting the people to come and enjoy them, and get them into their hearts, that so at length their preservation and right use might be made sure.