Yuba Goldfields
The Yuba Goldfields is a valley of 10,000 acres (40 km2) on both sides of the Yuba River in Yuba County, California, located northeast of Marysville. The goldfields are noted for their otherworldly appearance, filled with oddly shaped gravel mountains, ravines, streams and turquoise-colored pools of water. From the air, the goldfields are said to resemble intestines.
They were created during the California Gold Rush. The first Yuba-area miners panned for gold in stream beds in the valley but within a decade large-scale industrial processes replaced solitary prospectors. Mining companies moved from the valley floor into the Sierra Nevada foothills, where miners blasted gravel hillsides with high-pressure jets of water—a process called hydraulic mining.
One hundred and fifty years of gold mining and also gravel mining have given the Goldfields the unique and completely unnatural landscape that exists today.
en.wikipedia.org/wiki/Yuba_Goldfields
Yuba Goldfields
The Yuba Goldfields is a valley of 10,000 acres (40 km2) on both sides of the Yuba River in Yuba County, California, located northeast of Marysville. The goldfields are noted for their otherworldly appearance, filled with oddly shaped gravel mountains, ravines, streams and turquoise-colored pools of water. From the air, the goldfields are said to resemble intestines.
They were created during the California Gold Rush. The first Yuba-area miners panned for gold in stream beds in the valley but within a decade large-scale industrial processes replaced solitary prospectors. Mining companies moved from the valley floor into the Sierra Nevada foothills, where miners blasted gravel hillsides with high-pressure jets of water—a process called hydraulic mining.
One hundred and fifty years of gold mining and also gravel mining have given the Goldfields the unique and completely unnatural landscape that exists today.
en.wikipedia.org/wiki/Yuba_Goldfields