If this, where each separate eruptive vent is considered as a geyser, then (for a single example) there isn't a Fan Geyser in the UGB, but a Fan GeyserS, each vent being considered a geyser. Nope, doesn't work for me.. Scott Bryan (being a Curmudgeon again [I gotta get outta Arizona]) In a message dated 8/27/2010 5:25:07 P.M. US Mountain Standard Time, stepheneide at cableone.net writes: Hmmm, I always heard it called Dog Bone and the hole farther out was Thumper (for its noise). I don't know if they are just part of Spasmotic. They usually git full and Dog Bone overflows during a Tardy cycle when Penta is possible. So I thought of them as part of Penta's system and Spasmottic but they appear to be more active when a Penta eruption is possible. As for if its a geyser, I'm sorta liberial on this issue, it puts water in the air, its a geyser to me. -------------- next part -------------- An HTML attachment was scrubbed... URL: </geyser-list/attachments/20100827/3e1ce3e4/attachment.html>