Randolph B. Marcy,
The Prairie Traveler: A Hand-book for Overland Expeditions
“ With a train of pack animals properly organized and equipped, a party may travel with much comfort and celerity. It is enabled to take short cuts, and move over the country in almost any direction without regard to roads. Mountains and broken ground may easily be traversed, and exemption is gained from many of the troubles and detentions attendant upon the transit of cumbersome wagon-trains. ”
