A contingent of soldiers made up of some 339 Mormon men and six Mormon women, known as the Mormon Battalion, were the builders of that new road over the uncharted southwest from Santa Fe to San Diego and Los Angeles. A memorial to the historic trek of the Mormon Battalion and their guide Charbonneau has been erected at the San Pedro River, one mile (1.6 km) north of the U.S.–Mexico border near the present-day town of Palominas, Arizona. Other monuments or historic markers are in Tucson, Arizona and in California at Box Canyon near Warner Springs, at Temecula, at Old Town San Diego and at Fort Moore in Los Angeles. Colonel Cooke's diary mentions Charbonneau some 29 times from November 16, 1846, to January 21, 1847. Eight of the twenty wagons reached Mission San Luis Rey de Francia, four miles (6 km) from today's Oceanside, California, and the leaders counted the expedition as a success.