<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; charset=US-ASCII"> <META content="MSHTML 6.00.2900.2802" name=GENERATOR></HEAD> <BODY id=role_body style="FONT-SIZE: 10pt; COLOR: #000000; FONT-FAMILY: Arial" bottomMargin=7 leftMargin=7 topMargin=7 rightMargin=7><FONT id=role_document face=Arial color=#000000 size=2> <DIV> <DIV>In a message dated 2/23/2006 8:04:24 AM Pacific Standard Time, riozafiro@comcast.net writes:</DIV> <BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px solid"><FONT style="BACKGROUND-COLOR: transparent" face=Arial color=#000000 size=2>So, if my memory is correct, that photo was taken either Aug. 12 or 13, more likely the 13th. So is it possible this is one of the last Ledge photos before the dormancy? That would be really very cool, especially now that I appreciate it.<BR>Pat S.<BR></FONT></BLOCKQUOTE></DIV> <DIV></DIV> <DIV> <DIV>I decided to send this to the list, because if Pat's guess as to the date of her photo (August 13, 1974) is correct, then this is very likely the LAST (maybe next to last eruption) of Ledge before that seasons major, basin-wide disturbance.</DIV> <DIV> </DIV> <DIV>I have the complete log of Ledge eruptions for the entire (May 23 through October 2, 1974) season in my article about Norris in Transactions volume VII. On August 13, Ledge erupted at 1103. The next day, when the disturbance was underway, Ledge was entered by George Algard into the logbook as "In heavy steam phase (billowing)". Unfortunately, he did not record the time of that observation, but I'm pretty sure it was morning. Up to that time, Ledge had been averaging around 14 hours between eruptions. Therefore, I suspect that this billowing steam was the aftermath of a "normal" eruption that started around 0100 on the 14th _or_ action that was triggered by the onset of the disturbance.</DIV> <DIV> </DIV> <DIV>Summary: Pat's photo probably does show the last pre-disturbance eruption that Ledge had untile it went through a slight recovery. In the following days there was minor activity. The first decent eruption was on September 4 (somewhat weak). Then it may have erupted the following night, had a minor eruption on September 13, probably had decent 1 or 2 decent eruptions on September 24-25, and (at the the end of the season's records) "Finally... beautiful eruption" on October 2.</DIV> <DIV> </DIV> <DIV>Fond memories of my only summer as a Norris naturalist.</DIV> <DIV> </DIV> <DIV>Scott Bryan</DIV></DIV></FONT></BODY></HTML>