Cascade Mountaineers | Mt. Thielsen Outing
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Mt. Thielsen Outing

Mt. Thielsen Outing

Team Leader: Frank Florence

Date: April 27, 2013

Target Audience: Mountaineering enthusiasts looking for an early season summit.

Outing Description:

Meet: Assembly point is the parking lot at the Mt. Thielsen Trailhead, located on Route 138, across from the SE corner of Diamond Lake.

Time: 6:30 AM.  Anticipate a 2.5 hour drive from Bend on dry roads.

Route:  We will head east, following the Mt. Thielsen Trail (FS 1456) to Thielsen’s West Ridge.  The route continues along the ridge to the summit horn.  Approach distance is about 4.5 miles; elevation gain is approximately 3,800 feet.  Anticipate that most, if not all of the approach will be over snow.   The summit pitch is a short, moderately steep but not overly difficult rock scramble (4th Class.)  Total trip time estimate: 7-10 hours.

Prerequisite Skills: Climbers must be prepared to travel cross-country on snow (snowshoes recommended; skis optional) and scramble on steep rock. Depending on snow conditions, there may be some traverses on steeper snow requiring crampons and an ice ax.  All climbers will need to be able to self-arrest.

Number of CM Participants:  8 maximum.  Current membership with the Cascade Mountaineers required.

Equipment:  Plan for winter conditions.  Summit pack, appropriate clothing including extra layers and gloves or mittens, sunglasses or goggles, trail food and snacks, ten essentials. Verify that your headlamp is in working order and carry spare batteries. Harness, helmet, 1 ice axe, mountain boots, pre-fitted crampons, 2 locking carabiners, belay/rappel device.  Snowshoes (or AT skis with skins), trekking poles or ski poles.

Note:  It is anticipated that most people will travel with snowshoes.  If you intend to use AT ski equipment, you must communicate with the trip leader beforehand.  Under any circumstances we will ascend as a single party.  However, if there are skiers, we have the option of splitting the group on the return.

Contact Frank Florence to apply

(315) 788-0544(cell) or


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