This trip begins and ends at the High Desert Museum, Bend.

Leaders, Anne Nolin, Ellen Morris Bishop. Llama trek.  A three-day hike, beginning at McKenzie Pass, and following the Pacific Crest Trail to Sparks Lake. Witness the glacial and eruptive history of the Three Sisters area, rapidly-disappearing Collier Glacier, Explore the “Bulge” area near South Sister, and catch extraordinary views as llamas carry your gear thru the Three Sisters Wilderness. Leaders: Ellen Morris Bishop, Anne Nolin. Limit, 9.

1)      July 31: Evening: Talk, The Cascades disappearing glaciers and snowpack. Anne Nolin. and Ellen Morris Bishop. At High Desert Museum.

2)      August 1: Depart High Desert Museum, 7:30 AM. Arrive, trailhead, (PCT, McKenzie Pass) 8:30 AM. Begin hike. Packers pack llamas. 7 mile, medium-rigor hike to foot of Collier Cone. Upper Mathieu Lake, Yapoah Cone. Camp at Mission Spring. Late afternoon walk to view Collier Glacier.

3)      August 2: Optional morning scramble for the supremely fit to Collier Glacier. Hike: Opie Dildock Pass, PCT to Spring Meadow (6 miles.) Camp atop the South Sister “bulge”.

4)      August 3: Complete hike, 7 miles,  to Cascade Highway trailhead. Today, you’ll lead your llama! Examine most recent eruptions of South Sister, (Devils Chain) and Ice Age eruptions that occurred beneath glaciers. Arrive trailhead, 4 PM. Return to HDM, 6 PM