Middle Sister, Oregon

Prominence: 1127 ft, 343 m

Elevation: 10,047 feet, 3062 meters

Approx. Isolation: 1.39 mi, 2.23 km
Elevation Info:NAVD88 Elevation: 10,052 ft / 3063 m
Alternate Name(s)Little Sister
Peak TypeVolcano
Latitude/Longitude (WGS84)44° 8' 54'' N; 121° 47' 3'' W
44.148358, -121.784154 (Dec Deg)
597236E 4889070N Zone 10 (UTM)
CountryUnited States
County/Second Level RegionDeschutes

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Other Web Sites
     Middle Sister at
     Middle Sister at
     Weather for Three Sisters at

Weather and Snow
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Lists that contain Middle Sister:
     Mazamas Sixteen Northwest Peaks Award (Rank #10)
     Cascade Volcanoes Peak Pin (Rank #12)
     Mazamas Cascades Award (Rank #5)
     Western States Climbers List (Rank #206)
     Chemeketan Eighteen Northwest Peaks Award (Rank #10)
     Oregon Top 100 Peaks (Rank #5)
     Cascade Range 9000-foot Peaks (Rank #15)
     Western States Climbers Emblem Peaks (Rank #93)
     Oregon 9000-foot Peaks (Rank #5)
     Top 10 Elevation Grid for U.S. States (Rank #114)

Selected Guidebook(s) for this Peak:
       Climbing the Cascade Volcanoes (Smoot)
       Oregon High: A Climbing Guide to Nine Cascade Volcanoes (Thomas)
       Backcountry Ski! Oregon (Van Tilburg)

Selected Trip Reports from this site:
     1982-10-01 by jeff carr (Unsuccessful)
     1999-06-26 by Len Hall
     2007-07-29 by John Naleway (Unsuccessful)
     2008-07-13 by Les Zollbrecht
     2008-08-03 by Les Zollbrecht
     2009-08-02 by Les Zollbrecht
     2009-08-29 by Les Zollbrecht
     2010-07-30 by Les Zollbrecht
     2011-09-03 by George Burgess (GPS Track)
     2011-09-24 by Michael Wanberg (Unsuccessful)
     2012-08-10 by Michael Wanberg
     2012-08-20 by Vic Hanson
     2012-08-25 by Michael Wanberg
     2012-09-29 by Tim Manickam
     2013-07-04 by Daryn Dodge
     2013-07-10 by Gabriel Pramuk
     2015-06-23 by Lane Johnson
     2015-08-22 by Lou Hibbard
     2016-05-13 by Dustin Wittmier
     2016-05-29 by Evan Battaglia

View ascents of peak by registered members (152 total)

Nearby Peak Searches:
     Radius Search - Nearest Peaks to Middle Sister
     Elevation Ladder from Middle Sister
     Prominence Ladder from Middle Sister

Click on photo for original larger-size version.
Middle Sister from bottom of Hayden Glacier (2014-05-22). Photo by oregon mt. goat.
Click here for larger-size photo.
Web Map LinksAcme Mapper   MyTopo   Gmap4   TopoQuest
Bing Maps   Google Maps
ProminenceKey Col Page  (Detailed prominence information)
  Clean Prominence: 1127 ft/343 m
  Optimistic Prominence: 1167 ft/355 m
  Line Parent: North Sister
  Key Col: Collier Glacier    8920 ft/2719 m
Isolation1.39 mi/2.23 km
Nearest Higher Neighbor in the PBC database:
    North Sister  (NNE)
Isolation distance is based on NHN and is slightly overstated.
RangesContinent: North America
Range2: Pacific Ranges
Range3: Cascade Range
Range4: Oregon Cascades
Range5: Sisters Area
Ridges/DividesPacific Crest
Oregon Cascade Crest
Drainage Basins
Pacific Ocean
Deschutes [OR]
Pacific Ocean
OwnershipLand: Deschutes National Forest/Willamette National Forest
Wilderness/Special Area: Three Sisters Wilderness Area
Topo MapNorth Sister O44121b7 1:24,000
Data Source1:25,000 (or larger) Topographic Survey Map
Google Maps Dynamic Map

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