Three Sisters

Featured photo of Three Sisters

Three Sisters is a cluster of three volcanic peaks, North Sister, Middle Sister, and South Sister, located in Central Oregon. North Sister is the oldest of the three, and Middle Sister formed from eruptions in North Sister's flank. South Sister is the youngest, and is believed to have erupted as recently as 1853. South Sister is also the highest, as her siblings have eroded with time. The three peaks are the third, fourth and fifth highest peaks in Oregon, behind Mount Hood and Mount Jefferson. All three peaks are located within the Three Sisters Wilderness Area, and are easily accessible from the Pacific Crest Trail.

Elevation (feet): 10,358
Elevation (meters): 3,157
Continent: North America
Country: United States
Range/Region: Cascade Range
State: Oregon
Latitude: 44.1358
Longitude: -121.772
Difficulty: Basic Snow/Ice Climb
Best months for climbing: May, Jun, Jul, Aug
Year first climbed: 1931
First successful climber(s): Colin Chisholm
Nearest major airport: Portland, Oregon
Convenient Center: Bend, Oregon (West), Salem or Eugene, Oregon (East)

Trip Reports

NOTE: Trip reports were previously called "Summit Logs" - same feature, new name

There are 29 trip reports for Three Sisters.

Select any entry from the list below:

  • Log #20699 - by johanna Nakayama on Mar 21, 2007
    The circle around the sisters is a great backpacking trip. Summitting the sisters was icing on the cake. A great week spend in the Cascades
  • Log #7366 - by zach 12 years old on Nov 09, 2004
    there was a old man coming down all blody from fallng many times and it showed me any one could do it
  • Log #7369 - by Jon LeBre on Sep 14, 2004
    I climbed Middle on the crappiest day in history - 50 mph gusts, horizontal rain, etc. I hiked in to Camp Lake from Pole Creek the day before, camped and arose the next day to find rain, wind, and...
  • Log #7370 - by Brian Jenkins on Mar 05, 2004
    Start early to avoid crowds. Neat crater up top.
  • Log #7371 - by Rick on Oct 03, 2003
    First Cascade Summit, by getting to the top my wife and I are now official Mazamas (after one failed Hood attempt with our group). Went via Devil's Lake, absolutely beautiful day until the top, when...
  • Log #7372 - by Matt Mertz on Sep 28, 2003
    I left the pole creek trailhead solo at about 12:15 AM and reached the summit at 7:15. It was the best conditions i could have possibly asked for. I could see from St. Helens and Adams all the way to...
  • Log #7373 - by Steve Lacy on May 25, 2003
    Looking to try one, two or all three. Have heard of the Three Sisters Marathon. Looking to receive advise on starting points, how to complete the marathon, whether a 55 year old could do it!
  • Log #7374 - by Matthew G. Nielsen on May 15, 2003
    Noth Sister was by far the most difficult. The accent up the Bowling Alley at 0700 to get the best conditions was very daunting with the near vertival exposure to Collier Glacier several thousand...
  • Log #7375 - by Gordon Golden on Feb 21, 2003
    On a Scout climb in the early 1990's found a belt of 50 cal bullets on the summit in the crater. It was after a multi-year drout and the ice was way down from the usual. Have had good weather 4 of...
  • Log #7376 - by Tim L. Helmer on Dec 16, 2002
    Hey... has any one heard of "The Three Sisters". It a set of peaks near Banff Canada. Anyhow, if you want to see picture of the one I climbed, Bib Sister, go to my web site. Our copy of...
  • Log #7377 - by Sam Henshaw on July 27, 2002
    Make sure you buy yourself a pair of Trekking Poles, because the last quarter of the trail is pretty steap and on the way down it's pretty hard on your knee's if you don't have these.
  • Log #7378 - by Brenda Szymkowiak on Aug 24, 2001
    Living in Dallas I don't get much chance to drink in the beauty of mountains. I fell in love with the Pacific Northwest on this trip. South Sister was beautiful but the teens I hiked with were much...
  • Log #7379 - by Birdman on Aug 17, 2001
    This was my fifth trip up, and being 48 and out of shape, I only did it because a 49 year old friend had never done it. It was brutal, but what a thrill to be up there again. Painfully loved it. My...
  • Log #7380 - by Elizabeth Edwards on Aug 03, 2001
    Drink lots of water!! If you don't you will end up like me. Happy and dehydrated with heat stroke. The climb was totally worth getting sick and not being able to walk for two days once I got home. I...
  • Log #7381 - by Heather Hirst on July 31, 2001
    It was an awsome experience!!! Joined with 20 other people we summitted the mountian. It was a challenging climb but worth every effort and more for the view waiting at the top!
  • Log #7382 - by Frank Dunkle on July 31, 2001
    Joining a hardy group of teens and former teens hiking from Green Lakes to the summit of the South Sister, I enjoyed one of the most scenic (if arduous) climbs of my life. For those in the area, this...
  • Log #7383 - by Caroline Kirkpatrick on July 31, 2001
    Climbing the South Sister is something that most people thought I wouldn't or couldn't do. I am 16 years old and weigh only 90 lbs. I have lived in Texas most of my life where the highest point is an...
  • Log #7384 - by Nathan Reeves on July 26, 2001
    I have never climbed a mountain before. But on July 24th, 2001 I did. South Sister was the peak of my choice, and an arguous climb it was. Hiking in 5 miles to green lakes and then 4 and 1/2 to the...
  • Log #7385 - by Daniel Harris on July 23, 2001
    On August 2, I met Joel, his brother Dan, and his nephew Zach in Sisters, Oregon for a trip to the top of Middle Sister. We were given a ride to the Pole Creek Trail Head by my friend Mike Partridge....
  • Log #7386 - by Anthony Weissman on June 13, 2001
    Middle Sister Summit Attempt---- Started this long 7 mile hike to Camp Lake from Pole Creek Trailhead. Once at Camp Lake the weather turned very nasty, Lots of snow and harsh winds. We set up camp...
  • Log #7387 - by josh wedmore on Oct 24, 2000
    there great mountains jackshit exepct for the north. It has kicked my ass from weather 2 years in a row. good luck to yall. hope to see you there next august
  • Log #7388 - by Steven E. Herron on Sep 11, 2000
    Summited Middle Sister via Hayden Glacier (from the east - Pole Creek Trail Head). My first summit ever . . . I think I'm in love with a new activity!
  • Log #7389 - by Mark Bartholomew on Aug 14, 2000
    8/12, a beautiful day for climbing. We started from Green Lakes but took the route from Moraine Lake. I would recommend beginning there or from Devils Lake. Last stop for water is at Teardrop Lake at...
  • Log #7390 - by Eric DeVroeg on Aug 13, 2000
    Did a solo ascent of Middle Sister in September, and even at that time there was quite a bit of snow at the lower elevations, requiring some cross-country travel through the forest (trail not always...
  • Log #7391 - by Rich Gordon on Sep 17, 1999
    I summited South Sister twice in six days, the first time with my sister and brother-in-law, Ellaina and Aaron Davis of Corvallis, OR, and Rob Frost of Portland. We made the ascent in four hours...
  • Log #7392 - by Brian Sevits on July 21, 1999
    Summited with my friend josh wedmore, who was our guide, and his brother Scott. We went straight up Collier Glacier, man what an experience that was!! Planning on doing it again this summer.
  • Log #7393 - by Chris Westfalewski on Mar 11, 1999
    In a good weather this is not scrambling but hiking.
  • Log #7394 - by Joe Parker on Dec 07, 1998
    Great mountain to climb! Huge glaciers and a breathtaking cliff that dominates the face of the mountain.
  • Log #7395 - by David Hendricks on Nov 23, 1998
    Climbed from the Devil's Lake Trailhead on all trips. Made the ascent in three hours last trip. Plan to climb Middle and North Sisters next summer (1999).