Black Canyon of the Colorado the Nevada side of the canyon is the Sauna Cave. This cave was drilled by miners working on Hoover Dam while it was being constructed. It is a deep cave with calcium carbonate crystals on the walls. At the end of the cave is a hot spring, which causes temperatures in the cave to reach . One prominent canyon that splits from this canyon south of the Hoover Dam is Boy Scout Canyon. Boy Scout Canyon has water running through it that is warmed from a geothermal source. On the Arizona side of the river, there are several large hot
Steamboats of the Colorado River California, about 40 miles north of Goffs station, on the Santa Fé Railway. A mining camp, Vanderbilt was established nearby Vanderbilt Spring. The discovery of additional gold-rich veins in the fall of 1892 set off a rush to the area. A few months later gold was found at what became the placer mining camp of Murphyville, on the Arizona side of the river just twelve miles below Eldorado Canyon. Also in 1892, another gold boom occurred twenty miles east of Eldorado Canyon at White Hills in the White Hills, in Arizona Territory. Gold mines were revived in the Picacho District