Photograph as originally submitted to this page in the Historical Marker Database www.HMdb.org. Click on photo to resize in browser. Scroll down to see metadata.

Taken: June 28, 2008
Caption: Hydraulic Mining Monitor (Nozzle), circa 1854
Additional Description: This (assuming the date is correct on the accompanying plaque) is a very early example of a hydraulic mining monitor, used in the Elephant hydraulic mine, about one mile north of Volcano. The monitor was used to direct a stream of water under very high pressure to literally dissolve the earth to wash out gold bearing ores. The monitor now stands about 100 feet to the north of the Volcano historical marker.
Submitted: September 10, 2008.
Database Locator Identification Number: p35093
File Size: 0.880 Megabytes

To see the metadata that may be embedded in this photo, sign in and then return to this page.