The heart of the continent : a record of travel across the plains and in Oregon, with an examination of the Mormon principle - Ludlow, Fitz Hugh, 1836-1870. (New York : Hurd and Houghton ; Cambridge : Riverside Press, 1870)
Also available in digital form on the Internet Archive Web site.
Keywords: West (U.S.) -- Description and travel; Mormons -- West (U.S.); Overland journeys to the Pacific