“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 ...

Hydraulic fracturing is one of the most important technologies for shale gas production. Complex hydraulic fracture networks can be stimulated in shale reservoirs due to the existence of numerous ...

Placer gold is that which is loose in the soil and closest to the surface. Placer mining requires water to wash the dirt, perseverance and a strong back. Gold is the heaviest material in the soil, and ...