There is little question but that this video shows the "geyser", actually an erupting well, at Needle Rocks, near the north end of Pyramid Lake. The well (actually, three of them) were drilled by Western Geothermal Inc. in the early 1960s. The deepest reached down to 5,888 feet; another was about 4,000 feet. The maximum recorded temperature was 240C. From very early on (essentially, immediately upon being drilled) that deepest well "geysered" with a cycle of about 1 minute. It never completely quit but did cycle up and down. That info is as of the late 1960s, at which time also a notable amount of geyserite had already been deposited. deposited. So it is entirely possible that the well head now looks like a cone. (The above info from "Thermal Waters of Nevada", Nevada Bureau of Mines and Geology Bulletin 91, p. 71-72.) A photo taken in 1965 -- scanned from a not-all-that-good picture in the Bulletin -- is attached. Scott Bryan -------------------- In a message dated 11/21/2011 7:35:52 P.M. US Mountain Standard Time, jeff.cross at utah.edu writes: Some time ago, it was mentioned that a geyser might exist at Pyramid Lake, Nevada. Here is a video, as proof that an erupting feature exists there. It looks very much like a drilled well with rocks piled around it. I can find no footage of it not erupting. http://www.youtube.com/watch?v=AlmF9Vh_vKo Jeff Cross jeff.cross at utah.edu _______________________________________________ -------------- next part -------------- An HTML attachment was scrubbed... URL: </geyser-list/attachments/20111122/9f2b4a36/attachment-0001.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: Needle Rock Geyser.jpg Type: image/jpeg Size: 288186 bytes Desc: not available URL: </geyser-list/attachments/20111122/9f2b4a36/attachment-0001.jpg>