169 pp. With 127 plates from photographs containing 168 images; folding map. 9x5½, original red cloth. First Edition.

Abercrombie commanded the Copper River Exploring Expedition, constructing 80 miles of pack trail from Valdez to the headwaters of the Klutina River as part of a military road. The expedition also explored the Chettyna Valley, and made reconnaissances in the Copper and Matanuska River areas. The well-illustrated report contains an excellent selection of photographs as well as a folding map of The Trans-Alaska Military Road. Ricks, Alaska Bibliography, page 1.