<!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 6.00.6000.16414" 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 3/13/2007 5:35:19 PM Mountain Daylight Time, snorkology@sysmatrix.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>By the way, do not confuse Rainbow Spring with Rainbow Pool---Rainbow<BR>Spring is well off into the backcountry, a two day pack trip as I<BR>recall.Anyway, I bet many of you never realized that Yellowstone had oil.<BR>Don't spread that around :-) ...</FONT></BLOCKQUOTE></DIV> <DIV></DIV> <DIV>I don't know about Rainbow Springs, but Allen & Day noted the presence of "bitumen with a tarry appearance and odor" and "tarry substance" in the fumaroles at Calcite Springs. Their interpretation was that this was a distillate from organic material in the sedimentary rocks that lie beneath the volcanics of that area (near Tower).</DIV> <DIV> </DIV> <DIV>Scott Bryan</DIV></FONT><BR><BR><BR><DIV><FONT style="color: black; font: normal 10pt ARIAL, SAN-SERIF;"><HR style="MARGIN-TOP: 10px">AOL now offers free email to everyone. Find out more about what's free from AOL at <A title="http://www.aol.com?ncid=AOLAOF00020000000339" href="http://www.aol.com?ncid=AOLAOF00020000000339" target="_blank"><B>AOL.com</B></A>. </FONT></DIV></BODY></HTML>