An Exploded Bay (#1)
Posted by: Groundspeak Premium Member Volcanoguy
N 44° 26.447 W 110° 34.327
12T E 534050 N 4920920
A geological history sign along the Grand Loop Road near West Thumb.
Waymark Code: WMDPEC
Location: Wyoming, United States
Date Posted: 02/10/2012
Published By:Groundspeak Regular Member caverspencer
Views: 20

“West Thumb’s shoreline has suspiciously crater-like contours. Its underwater profile is dramatically deeper than the rest of Yellowstone Lake. Only a massive explosion could have formed West Thumb.
Though the blowout occurred 125,000 years ago, West Thumb is still thermally active. Hot springs, mudpots, and geysers steam and percolate along the shore, and temperature gauges record high heat flow in lake bottom sediments.”
Marker Name: An Exploded Bay

Marker Type: Rural Roadside

Addtional Information:

Group Responsible for Placement: National Park Service

Date Dedicated: Not listed

Marker Number: Not listed

Web link(s) for additional information: Not listed

Visit Instructions:
Please post a photo of you OR your GPS at the marker location. Also if you know of any additional links not already mentioned about this bit of Wyoming history please include that in your log.
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Recent Visits/Logs:
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chrissyml visited An Exploded Bay (#1) 07/26/2022 chrissyml visited it
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OpusTerra visited An Exploded Bay (#1) 07/18/2014 OpusTerra visited it
k-lord team visited An Exploded Bay (#1) 09/20/2012 k-lord team visited it
Volcanoguy visited An Exploded Bay (#1) 10/01/2010 Volcanoguy visited it
kJfishman visited An Exploded Bay (#1) 09/18/2006 kJfishman visited it

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