EXPLORATION And SURVEY Of The VALLEY Of The GREAT SALT LAKE OF UTAH, Including a Reconnaissance of a New Route Through the Rocky Mountains. Atlas only. Includes 2 maps. One of the Great Salt Lake and the other Map of a Reconnaissance between Ft. Leavenworth, on the Missouri River, and the Great Salt Lake in the Territory. Good condition with folds and minor tears. Circa 1850's. Please note that the Post Office has slowed down its deliveries, especially media mail. We ...do offer priority mail options.