[Geysers] River Group August 25

[carolyn loren]

I caught a Pocket geyser eruption at 0928 I believe during my last Mudpot Special walk, 17 August.  It was the second I've seen this summer.
 
Carolyn


From: TSBryan at aol.comDate: Fri, 25 Aug 2006 15:08:48 -0400To: geysers at wwc.eduSubject: [Geysers] River Group August 25

I made a quick trip into the River Group and Pocket Basin Mud Pots this morning.
 
UNNG-RVG-4 is active, though its intervals are long -- greater than 2 hours -- and it might do little more than overflow.
 
Pocket Basin Geyser appears to be dormant. It is undergoing its intermittent, bubbling overflows, but the higher formations were bone dry and the adjacent spring never stopped vigorous bubbling.
 
Just south of the largest pool in the south area is a small geyser. I saw one interval (start to start) of about 14 1/2 minutes and one timed duration of 4m 26s. Some of the splashes reached 4 feet high although most were less than 2 feet high. Nearby was another geyser, erupting from a fracture within an extensive bacterial flat; it had durations and intervals of around 30 seconds and a height of maybe 6 inches.
 
Armored Spring was undergoing intermittent boiling along the edge near its outlet.
 
"Dark Pool" gave me one interval of 30 minutes. Both eruptions lasted around 30 seconds. The first eruption consisted of little more than vigorous boiling, but the second eruption included several bursts about 4 feet high.
 
Brain Geyser is active, though I have no interval. Near it was a little spouter that could be called "Tiny" if that name wasn't already in use. The splashing was up to about 2 inches high and constant, but the water level varied from well below overflow to (for its size) heavy overflow. The vent is about 1 inch across within a tiny, beaded cone.
 
The mud pots are hardly worth a visit. I cannot remember ever before seeing the mud cone areas (Microcosm Basin) entirely dry -- lots of hissing but no fluid mud anywhere. Up above, a couple of the bigger mud pots are active but nothing was spectacular. The pot at the far north, which sometimes acts as the "vertically gifted mud geyser" was all but dry.
 
Scott Bryan
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