In 1860 a gold rush began in the mountains nearby with the discovery of gold by William F. Holcomb in Holcomb Valley early 1860. Another strike followed in the upper reach of Lytle Creek. By the 1860s, San Bernardino had also become an important trading hub in Southern California. The city already on the Los Angeles – Salt Lake Road, became the starting point for the Mojave Road from 1858 and Bradshaw Trail from 1862 to the mines along the Colorado River and within the Arizona Territory in the gold rush of 1862-1864.