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Ammon HatchElevation?

Ammon Hatch

Hasn't voted

The National Geodetic Survey has the elevation at 13,809'. 13,804' was an older measurement.

https://www.ngs.noaa.gov/cgi-bin/ds_mark.prl?PidBox=OW0356
Posted Aug 14, 2017 8:26 pm

RedwicRe: Elevation?

Redwic

Voted 10/10

The National Geodetic Survey link you provided is providing old data. Plus, using the data link you provided, the marker from which that data is based was atop "A 5.0 FT. TALL ROCK CAIRN ON THE HIGHEST POINT OF THE MOUNTAIN."
The rock cairn was manmade, not a natural highpoint.
13809' - 5' cairn = 13804' (which is the accepted HP elevation by most resources)
Posted Aug 16, 2017 9:59 pm

Ammon HatchRe: Elevation?

Ammon Hatch

Hasn't voted

Very good points, and your explanation is perfectly reasonable. I did make that connection, but I was unsure if the measurement was the top of the cairn or the base of the cairn (it's non-specific). It seems weird for them to supersede the old value with a new one simply because a cairn was built. I wonder if there is newer data or an official clarification anywhere on the matter.

I'm no expert on the matter, but including the height of the station mark seems like bad surveying.

I know it's weird to get stuck on 5 feet, I'm just a pedant and want to find the right answer more often than it's worth it.
Posted Aug 22, 2017 5:16 pm

RedwicRe: Elevation?

Redwic

Voted 10/10

By the way, I have seen the USGS do this on other peaks, too. Kind of corny way of measuring, very true.
Posted Sep 9, 2017 5:26 pm

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