[Geysers] West Thumb 7-13-05

[Mike Keller]

I spent a few hours at West Thumb today.  Nothing really exciting, but a few
things:

 

Ledge Spring is active.  Closed intervals varied from 22-31 minutes, and the
eruptions reached 1-3 feet.

 

Surging Spring was dormant and not overflowing.

 

Twin Geyser was dead-there was water in the crater but no boiling.

 

The small perpetual UNNG across the boardwalk from Twin was dry and acting
as a fumarole.

 

Hillside was in overflow all day.

 

Fishing Cone is barely above the lake, and Lakeshore Geyser is under about a
foot of water.

 

There is a small UNNG erupting near Venting Pool.  It is a vent I have never
seen erupt before.  Intervals were about 10 minutes long and the eruption
reached a foot or so.

 

Closed intervals on Occasional Geyser varied from 16-30 minutes.  The main
(circular) vent erupted from 3-6 feet and the smaller side vent erupted to
about 3 feet.

 

Lone Pine was empty and dry all afternoon.

 

In 30 minutes of observation from the road overlook of Potts Hot Springs I
did not see anything erupt.

 

MK

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