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Date Posted: 01:23:23 05/25/03 Sun
Author: Roy Schweiker
Subject: Elevation standards
In reply to: Mark de Saint-Rat 's message, "Re: Welcome!" on 16:47:40 05/24/03 Sat

>(!) Why is Mt. Lafayette listed at 5260'? An
>examination of the current USGS sheets says 5220+ not
>more then 20.'

Note that the USGS map has 40' contours http://www.topozone.com/map.asp?z=19&n=4892474&e=288826&s=25
so the highest contour is 5240', then adding half a contour gives 5260'. That is the way the AMC list is made up when the map doesn't give an elevation.

>The current geodetic from the same folks says 5249'.
>The same USGS folks note that the current Katahdin
>geodetic is 5270'

Note that BM elevations often differ from map contours, in Maine by up to 2 contour intervals. These come from different government agencies (the BM elevations are actually from the National Geodetic Survey [www.ngs.noaa.gov] formerly Coast and Geodetic Survey) who apparently are in no hurry to resolve it. To be consistent, the AMC uses map elevations only. The Trailwrights just use the highest contour without adding half. You can decide which is best for yourself, they all climb the same mountain :-)

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  • Re: Welcome! -- Cheryl Suchors, 00:02:15 06/06/03 Fri
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