“Golden Gulches,” a book recently published by the Breckenridge Heritage Alliance, shines the spotlight on the area’s hydraulic mining, an antiquated technique in which entire hillsides were washed ...

Hydraulic mining with powerful hoses called giants or monitors caused great damage to the environment in the 1880s. Fed by diverted streams and reservoirs, pressure hoses washed loosened gravel and ...

A hydraulic excavator feeds large rocks into a powerful mobile crushing plant at an active quarry site. The industrial ...

Komatsu says its new PC4000-11E hydraulic mining excavator can bring both the powerful digging force of high-performance diesel machines and the emission-free operation of battery power to some of the ...

The "Hydraulic Giant" - a century-old mining device long missing from historic Kentucky Camp - has been recovered and will go on display Saturday at the site southeast of Tucson. The Giant, a huge ...

Nevada County town names are synonymous with “Gold Rush” and “gold rush country.” Nevada City is a living museum of California’s rich Argonaut period, and its appearance is quite improved from the ...

While working a gravel claim at American Hill near Nevada City in 1853, Edward E. Matteson, a miner from Connecticut, conceived the idea of putting water under pressure to work in mining operations.