[Geysers] Lion and ? (N.Goggles)

[TSBryan at aol.com]

In a message dated 9/14/2006 11:41:16 PM Mountain Standard Time,  
r.keam at auckland.ac.nz writes:

The  postings on this matter lead me to ask:  Does a very detailed map 
of  the locations of the springs on Geyser Hill, and indeed the whole 
area  back to OF Lodge exist?  (I have a recollection of being told 
that  this was the case during a very early conversation I had with 
Scott  Bryan.)
 
Depending on the definition of "very detailed," the maps produced by the  
USGS (commonly known as the "Thermal Maps") during the 1960s and to some extent  
updated (or at least, added to) during the early 1970s are available. The 
scale  is 1 inch = 200 feet. These maps exist for the entire Upper Geyser  Basin 
(also for Norris Geyser Basin and West Thumb Geyser Basin, and for  portions of 
the Midway Geyser Basin and Lower Geyser Basin (plus other areas  such as Mud 
Volcano). Duplicated from the copies that were given to me as a  personal 
gift by Dr. Donald E. White circa 1980, these maps are now  available from the 
GosaStore.


If so, and if also a reasonably accurate location for 
the camera is known,  then it ought to be possible quite readily to 
determine the direction of  the line-of-sight to the steam cloud that 
appears to show something  erupting. If the line-of-sight intersects 
the location of a thermal  spring, then this becomes a prime candidate 
for the source of the  cloud.

For the NPS, we have been working on doing exactly this. Not only for  
directly visible features, but also for those steam clouds that rise from behind  
the tree-covered ridge. And as previously pointed out, wind or fog or  
intervening steam clouds and etc. can lead one astray.
 
Scott Bryan
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