South Slide Mountain is located in the NE corner of Mount Rainier National Park... where Peakbagger.com ranks it as #14 on the Mountaineers Tahoma Peaks List.
I started this hike from Sunrise Point (6200')... using the Palisades Lakes Trail for 3.5 miles... where I left the trail just above Upper Palisades Lake and followed a good path along the west ridge of Brown Peak to its treed summit (6322')... then continued on good path over Points 6200+ and 6480+ to the summit of South Slide Mountain (6620').
Excellent views from the summit.
9.5 miles roundtrip, gaining ~3000 feet of elevation... the South Slide summit is only 400 feet higher than the parking area at Sunrise Point... an indicator that there are numerous ups and downs along this journey.
Maps and photos of my hike to South Slide Mountain.
At 6620 feet, South Slide Mountain is located two-thirds of a mile south of the lower Slide Mountain (6339')... which begs the question... why isn't South Slide Mountain named Slide Mountain... and Slide Mountain named North Slide Mountain?
I used cartman's October 2011 trip report for the beta on this hike... when he and Matt did this summit along with three others.
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"Teanaway 70" Peaks List... a guide to hiking and scrambling in the Teanaway Area.
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"Teanaway 70" Peaks List... a guide to hiking and scrambling in the Teanaway Area.
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At 6620 feet, South Slide Mountain is located two-thirds of a mile south of the lower Slide Mountain (6339')... which begs the question... why isn't South Slide Mountain named Slide Mountain... and Slide Mountain named North Slide Mountain?
The 1924 and 1928 1:125,000 USGS Mt Rainier maps https://livingatlas.arcgis.com/topoexplorer/index.html list Slide Mountain at the next summit south of where the most current USGS map does (the 1971 1:24,000 White River Park map). The 1928 version is also shown at Caltopo:
https://caltopo.com/map.html#ll=46.96576,-121.58681&z=14&b=1930&a=mba
My hardcopy of the 1955 1:62,500 USGS Mt. Rainier National Park map also puts Slide Mountain at the higher location. My hardcopy of the 1971 1:50,000 USGS Mt. Rainier National Park map puts Slide Mountain at the same location as the 1971 1:24,000 map. I don't know if the USGS national park maps are available online.
Fred Beckey has said in his Cascade Alpine Guides that the USGS occasionally screwed up and moved the location of a mountain or incorrectly changed the spelling of a place. The USGS also sometimes changes locations / spellings to get them right, for example the USGS finally got the correct spelling of Mt. Thomson (north of Snoqualmie Pass) correct in 1989. You can see the different historical USGS versions here: https://livingatlas.arcgis.com/topoexplorer/index.html
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