[Talk-us] GNIS?

[Thomas Colson]

For bench marked peaks, we stick with the NGS-published elevation, which I
believe most of them have been converted to the latest and greatest Geoid
model. However, we do have a lot of GNIS peaks that aren't bench marked. For
some (the ones the peak baggers blog about), we send up a team with a
survey-grade GPS and get an OPUS solution of the elevation, which is within
4-6 in of true. 

 

From: Mike Thompson [mailto:miketho16 at gmail.com] 
Sent: Sunday, June 16, 2013 8:13 PM
Cc: talk-us
Subject: Re: [Talk-us] GNIS?

 

> BTW, for most peaks are there not "official" elevations?  

The National Geodetic Survey maintains a datasheet for each benchmark,
including those on peaks (http://www.ngs.noaa.gov/cgi-bin/ds_radius.prl).
The datasheet lists the official elevation.  Much easier, although less fun,
than summit each peak with GPS equipment.  

 

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