<div dir="ltr">A couple of reference photos from the Digital Slide File, which clearly show that the small vent is the major eruptive vent:<div><br></div><div><a href="http://www.nps.gov/features/yell/slidefile/thermalfeatures/geysers/westthumb/Images/05381.jpg">http://www.nps.gov/features/yell/slidefile/thermalfeatures/geysers/westthumb/Images/05381.jpg</a><br>
</div><div><br></div><div><a href="http://www.nps.gov/features/yell/slidefile/thermalfeatures/geysers/westthumb/Images/11083.jpg">http://www.nps.gov/features/yell/slidefile/thermalfeatures/geysers/westthumb/Images/11083.jpg</a><br>
</div><div><br></div><div>Note the larger "pressure pool" drained in the foreground of both photos.</div><div><br></div><div>David Schwarz</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Tue, May 20, 2014 at 8:08 PM, Michael Goldberg <span dir="ltr"><<a href="mailto:goldbeml@ucmail.uc.edu" target="_blank">goldbeml@ucmail.uc.edu</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">On May 14, Ryan Maurer reported seeing eruptive activity from Lakeshore. Here is his description attached to the observation at 09:17 (copy/pasted from GeyserTimes.org).<br>
<br>
"Intermittent boiling from the main vent every 30-40s, one of these built into a violent boiling to a foot to a foot and a half with droplets and splashes to 2-3ft. Dropped to boiling 6-9inches and pumping out a LOT of water after a few seconds or so of the big stuff. Eruption stopped and the intermittent surges became less frequent and less powerful. Saw no more steam from it ten-fifteen later."<br>
<br>
[I'd be interested to know which hole is the "main vent" in this recent activity. If I remember correctly from old pictures, past eruptions came from the smaller lakeward vent.]<span class="HOEnZb"><font color="#888888"><br>
<br>
Michael Goldberg<br>
<a href="mailto:Michael.Goldberg@uc.edu" target="_blank">Michael.Goldberg@uc.edu</a></font></span><div class="HOEnZb"><div class="h5"><br>
<br>
On Sun, 18 May 2014, Leslie wrote:<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
For the several minutes I was there around 10:20 a.m. MDT today (Sunday, May 18th), the larger vent of Lakeshore Geyser was in a continuous boil that reached six to eight inches in height at times. The smaller vent was quiet.<br>
Leslie Quinn<br>
<br>
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