Eldorado Canyon
Boulder City, Clark County, Nevada
Marker Inscription
Eldorado Canyon. Eldorado Canyon, the site of a mining boom, runs east from here to the Colorado River. Prospectors began digging for gold and silver here about 1859, forming the Colorado Mining District. The three largest mines, the Techatticup, Wall Street, and El Dorado Rand Group, yielded over $6,000,000.This portion of the Colorado River was navigable before the construction of Hoover Dam, allowing steamboats and barges to freight goods 350 miles from the Gulf of California to the mouth of Eldorado Canyon and upriver. The steamboat era peaked in the 1860s but continued to the turn of the twentieth century.In 1867, the US. Army established an outpost at Eldorado Canyon to secure the riverboat freight and to protect miners in the canyon from Native Americans. The military abandoned the camp in 1869. In the 1870s the mines flourished again, producing ore until World War II.
Erected by Nevada State Historic Preservation Office
The Story
Eldorado Canyon runs east to the Colorado River, and around 1859 prospectors began digging its slopes for gold and silver, organizing the Colorado Mining District. Its three great mines — the Techatticup, Wall Street, and El Dorado Rand — yielded more than six million dollars, while steamboats and barges freighted goods some 350 miles up from the Gulf of California to the canyon's mouth. In 1867 the U.S. Army planted an outpost here to guard the river freight and the miners; the mines revived in the 1870s and worked on until World War II.
Why it matters
Eldorado Canyon knits together mining, river navigation, and frontier military history on a stretch of the Colorado that steamboats once ruled — a reminder of how remote the desert Southwest was before Hoover Dam remade the river.
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