The vectorized contour lines in USGS GEOPDF products allow you to zoom in to any level you desire and their data from MT_Granite_Peak_20110517_TM_geo.pdf says the highest spire is 11880. I don't pretend to know where the data comes from, but I'm guessing it's a satellite photo based approximation. I climbed it and I trust a GPS fix (not barometer based) that pegged it as 12013.
VincePoore - Aug 9, 2018 7:16 pm - Voted 10/10
It's #27The vectorized contour lines in USGS GEOPDF products allow you to zoom in to any level you desire and their data from MT_Granite_Peak_20110517_TM_geo.pdf says the highest spire is 11880. I don't pretend to know where the data comes from, but I'm guessing it's a satellite photo based approximation. I climbed it and I trust a GPS fix (not barometer based) that pegged it as 12013.
John Kirk - Sep 26, 2018 3:51 pm - Hasn't voted
USGS High Res 1986 quad has clear 12,000' contourhttps://prd-tnm.s3.amazonaws.com/StagedProducts/Maps/HistoricalTopo/PDF/MT/24000/MT_Granite%20Peak_264119_1986_24000_geo.pdf
Matt Lemke - Dec 25, 2018 7:14 am - Hasn't voted
Re: USGS High Res 1986 quad has clear 12,000' contourNow that's some hi res!!