In a message dated 12/5/2004 10:53:28 AM Pacific Standard Time, KSCOPE_YNP at peoplepc.com writes: If this was the same marathon I saw on 12/03, the duration was in excess of 34 hours. At 2035 on 12/04, Grotto was off. Here's hoping that maybe there's some info as to when the _next_ eruption began (what was the interval)........ Scott -------------- next part -------------- An HTML attachment was scrubbed... URL: </geyser-list/attachments/20041206/9e8bf140/attachment.html>