South Twin
WA 
BGN PageAlternate Names
: Sisters Benchmark DatasheetElevation
: 6,936' (LiDAR) map: 7,020'WA Rank
: 918WA Prominence Rank
: 35County
: WhatcomQuad
: Twin Sisters MountainCoords
: 48.70489°N, 121.98737°W Notice
: 48.70489°N, 121.98737°W NoticeRise
: 3,488' (LiDAR) map: 3,560'Saddle
: 3,448' (LiDAR) map: 3,460'Line Parent
: Sherman PeakParent Lineage
Proximate Parent
: "Assassin Spire"Isolation
: 7.28 milesMount Baker Wilderness
Mount Baker National Forest
YDS Class
: 4 Discussion DisclaimerWeather Link
Snow Depth
CalTopo
Custom List Entries
Notes: Area with Sisters Benchmark has been found higher than spurious NW 7000 ft+ contour, verified by LiDAR.
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Report 1
Report 2
Links: peakbagger.com
Ascents:
24 members have reported ascents...
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Images:
 EricNoel 11-06-2008 |  EricNoel |  hiddenwild 05-30-2026 |  John Roper 02-21-2010 |
 Paul Klenke 03-30-2020 |  Paul Klenke 11-18-2016 | ||
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