Arvada is a city in Colorado and a part of the Denver-Aurora-Lakewood area. Arvada was the site of the first gold strike in Colorado. On June 22, 1850, a wagon train, bound for California, crossed the Platte River just north of the confluence with Clear Creek, following Clear Creek west for six miles. The members of the wagon train rested for a day, and Lewis Ralston dipped his gold pan in an unnamed mountain stream. He found almost $5 in gold in his first pan. The stream was later named Ralston Creek in his memory.