In a message dated 2/18/2006 4:26:54 PM Pacific Standard Time, mabdepot at msn.com writes: I think the arch was referred to as "Zygomatic Arch" by GL HEnderson, a name that has always stuck with me. Lee can correct me if we are talking about a different sinter arch... whatever, it is too bad it collapsed, in my opinion. Those kinds of structures are neat. There's been off-list discussion on this (and more regarding the Silver Globe-Avoca area) between me, Lee and Carolyn, and having seen a map I did, Carolyn says that the arch that collapsed was that over my BBG-3 and NOT the Zygomatic Arch at what turns out to be properly and fully called Silver Globe Geyser. (And officially named Silver Globe [period] is what I've been calling "Silver Globe Pool Geyser". I think.) Scott -------------- next part -------------- An HTML attachment was scrubbed... URL: </geyser-list/attachments/20060218/c88c0d48/attachment.html>