Identifies and evaluates virtually every known source on the southern trails of the gold rush of 1849, citing some 130 diaries, journals, and reminiscences. Following a historical overview, narrative introductions precede lists and descriptions of sources for varying routes west, including routes through Mexico and important feeder trails. Each entry gives notes on sources' locations. Includes b&w original and historical photos and illustrations, a glossary of places, an appendix on routes, and a fold-out map. Annotation c. by Book News, Inc., Portland, Or.