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Sister Rocks

From Oregon Hikers Field Guide

Soda Peaks and Second Sister from First Sister, Sister Rocks (bobcat)


The two rocky prominences of Sister Rocks are just outside the Trapper Creek Wilderness and are part of the Sister Rocks Research Natural Area, which was established for the study of climax silver fir forest. The rocks are actually about 50 feet higher than Observation Peak, the most visited summit in this area.

The first, and higher, Sister Rock is distinguished by its vertical rusting pipe (No one seems to know what this pipe was used for). Just to the west is Second Sister, a short scramble down and up, which offers more expansive views than First Sister. Looking south, you’ll see the Trapper Creek drainage, with Howe Ridge and Observation Peak on the left and Soda Peaks on the right. Mount Hood dominates the far horizon. To the west, get a view across the Siouxon Creek drainage to Siouxon Peak and Huffman Peak. Look north and east to Mount Saint Helens, Mount Rainier, and Mount Adams. Notice also that there are three Geodetic Survey markers, used for triangulation purposes, on Second Sister!

You can bushwhack the short distance (1 1/4 miles) down Second Sister's west ridge to FR 58 to the Upper Siouxon Trailhead and walk the road back to the Observation Peak Trailhead if you want to make a loop out of your day. A longer loop going left on FR 58 will take you into the Trapper Creek Wilderness and include a visit to Observation Peak (See the Sister Rocks-Observation Peak Loop Hike). Good off-trail navigation skills are needed for both of these options.

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