Illustrated with ten photographs and a facsimile of the title page of the 1875 first edition. San Francisco: The Sierra Club, 1960. First edition thus, limited to 2,500 copies. Classic account of a camping trip in the High Sierras undertaken by University of California professor of geology and history Joseph LeConte in July and August 1870, accompanied by Professor Frank Soule, Jr. and eight members of the student body. This was LeConte's first trip to the Yosemite region, to be followed by ten more over the next thirty years.