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Our Mt. Hood Trips are ALMOST FULL for the 2021 season. Follow us on Instagram or Facebook for last minute openings.

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    • Mt Hood Summit Program
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      • Reid Glacier Headwall
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      • Mt Baker Alpine Skills Course – 4 Day
      • Mt Baker – Easton Glacier
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      • Forbidden Peak
      • Mt Rainier – Emmons Glacier
    • Advanced Alpine Climbs
      • Jefferson Park Glacier
      • Fisher Chimneys
      • The North Ridge of Baker
  • Ski Mountaineering
    • Glacier Skiing
    • Ski Mountaineering Clinic – 1 day
    • Ski Descent of Mt Hood
    • Ski Circumnavigation of Mt Hood
    • Winter Skiing and Splitboarding
  • Clinics
    • Steep Snow Climbing Clinic
    • Anchors and Belaying on Steep Snow
    • Ski Mountaineering Clinic
    • Crevasse Rescue Clinic – 1 day
    • Glacier Ice Climbing Clinic – 2 day
    • Intro to Mixed Climbing
    • Advanced Mixed Climbing
  • Alpine Rock
    • Intro to Alpine Rock – 2 day
    • Mt Washington
      • North Ridge of Mt Washington
      • West Ridge of Mt Washington
    • Three Fingered Jack – South Ridge
    • Marsupials Traverse
    • Rock Climbing at Smith Rock
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Timberline Mountain Guides
  • TMG
  • Mt Hood
    • Mt Hood Summit Program
    • Ski Mountaineering
      • Glacier Skiing
      • Ski Mountaineering Clinic – 1 day
      • Ski Descent of Mt Hood
      • Ski Circumnavigation of Mt Hood
    • Mount Hood’s Alpine Routes
      • Cooper Spur
      • Devil’s Kitchen Headwall
      • Reid Glacier Headwall
      • West Crater Rim
      • Leuthold’s Couloir
    • Clinics
      • Steep Snow Climbing Clinic
      • Anchors and Belay for Steep Snow Climbs
      • Crevasse Rescue Clinic
  • Cascades
    • Mt Hood
      • Glacier Skiing
      • Cooper Spur
      • Devil’s Kitchen Headwall
      • Steep Snow Climbing Clinic
    • Oregon’s Cascade Crest
      • West Rib of Mt Jefferson
      • Three Fingered Jack
      • Mt Washington
      • North Sister
      • Middle Sister
      • South Sister
      • Broken Top
    • Washington Cascades
      • Mt Baker Alpine Skills Course – 4 Day
      • Mt Baker – Easton Glacier
      • Mt Shuksan – Sulphide Glacier
      • Mt Shuksan – Fisher Chimneys
      • Forbidden Peak
      • Mt Rainier – Emmons Glacier
    • Advanced Alpine Climbs
      • Jefferson Park Glacier
      • Fisher Chimneys
      • The North Ridge of Baker
  • Ski Mountaineering
    • Glacier Skiing
    • Ski Mountaineering Clinic – 1 day
    • Ski Descent of Mt Hood
    • Ski Circumnavigation of Mt Hood
    • Winter Skiing and Splitboarding
  • Clinics
    • Steep Snow Climbing Clinic
    • Anchors and Belaying on Steep Snow
    • Ski Mountaineering Clinic
    • Crevasse Rescue Clinic – 1 day
    • Glacier Ice Climbing Clinic – 2 day
    • Intro to Mixed Climbing
    • Advanced Mixed Climbing
  • Alpine Rock
    • Intro to Alpine Rock – 2 day
    • Mt Washington
      • North Ridge of Mt Washington
      • West Ridge of Mt Washington
    • Three Fingered Jack – South Ridge
    • Marsupials Traverse
    • Rock Climbing at Smith Rock
  • Register
  • (541) 312-9242
  • Resources
    • Equipment Lists
    • Rental Gear
    • Policies
    • Travel Insurance
    • Private Rates
    • Fitness Requirements
    • Frequently Asked Questions
  • About
    • Guides
    • Contact
    • AMGA Accreditation
    • Community Partners
    • I’m Interested in a Trip
    • Register

North Sister

Northeast Arete of North Sister

North Sister  |  Three Sisters  |  Spring  |  Snow  |  Difficult

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Bend, OR 97709

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Timberline Mountain Guides

We believe that climbing and skiing in the mountains inspires us, exposes us to beautiful natural wonders, and creates bonds between people that transcend daily life. In short, it makes us feel more alive.

2 spots just opened up on our Mount Rainier climb 2 spots just opened up on our Mount Rainier climb this Summer!  Register online if you want to climb the Emmons Glacier with our guides on July 19-23rd, 2021.  These spots won't last long . . .
Yep! Alpine season has begun in Central Oregon. Sp Yep! Alpine season has begun in Central Oregon. Spring is THE best time of year around here:  We're climbing in the sun, skiing corn, and scratching around the mountains with crampons on our feet.  While @oregonskiguides puts the finishing touches on our ski season, @smithrockclimbingschool is going into full swing instructing anchor and rescue skills and cruising our favorite multi pitch routes in the park.  Soon we'll be putting our first boot prints of the year on Mount Hood, Jefferson and the Sisters.  Our snow climbs in Oregon are nearly sold out! So, if you want to climb with us this year, think alpine rock climbing in the Sisters and glacier mountaineering in Washington. Reach out to hear more.
All good things come to an end, including alpine r All good things come to an end, including alpine rock climbing season!  This photo from a climb of #threefingeredjack last week told us everything we need to know about how the cooler air recently is impacting the mountains.  The fresh rime ice at the summit added to the adventure. There's still plenty of summits to tag and routes to climb at Smith Rock this Fall with @smithrockclimbingschool . . . and there's the promise of snow to come, and more time in the mountains with @oregonskiguides  We hope to see you out there.
Throwback to June on the North side of #MountHood Throwback to June on the North side of #MountHood  We're open for booking alpine climbs in 2021. Our Hood Season will start on May 2nd next year and we're really looking forward to climbing with everyone who wasn't able to visit this year.  Give us a call or visit www.timberlinemtguides.com/ register/ to sign up for a climb with us.
Yesterday on the Hayden Glacier. Lots of teams cl Yesterday on the Hayden Glacier.  Lots of teams climbed Middle Sister this weekend,  but we had the glacier mostly to ourselves.  As you can see,  late-season conditions on the glacier created some fun navigation challenges!  There's still some sun in the forecast,  but we're also looking forward to winter in this terrain.  It won't be long until we put on our @oregonskiguides jackets and get back out here!
Coming around "the crawl" on Three Fingered Jack. Coming around "the crawl" on Three Fingered Jack.  @cliffordagocs sent us this one, from his work-week!
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