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Observation Rock

Mount Rainier Area


Mount Rainier Area -- NW - Carbon River/Mowich
View map below


13.0 miles, roundtrip


Gain: 3435 ft.
Highest Point: 8364 ft.


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Parking Pass/Entry Fee

National Park Pass

From Mowich Lake, hike the Wonderland Trail to Spray Park. Then hike cross country towards Observation Rock and Echo Rock, preferably on snow to avoid making lasting impacts to the environment. In the late season, you can hike to the highest point of Spray Park on the Wonderland Trail and then take a boot-path trail on the ridge towards Echo Rock.

When you reach the Flett Glacier, traverse the glacier to the left (south) towards the south side of the peak, then climb the scree and talus to the summit.

This is an alpine scramble. Route finding skills will be necessary. An ice axe, topographic map, compass, altimeter and GPS (and the knowledge of how to use them) are highly recommended. Crampons and or snowshoes may be needed depending on snow conditions.


Observation Rock

Map & Directions

Co-ordinates: 46.9329, -121.8653 Open map in new window


Mount Rainier Area -- NW - Carbon River/Mowich

Mount Rainier National Park

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Guidebooks & Maps

Climbing Washington's Mountains

Jeff Smoot

Morris Book Publishing


75 Scrambles in Washington

Peggy Goldman

Mountaineers Books.

USGS Mowich Lake

Green Trails #269

Getting There

From SR 162 in Sumner, or SR 410 in Bonney Lake, drive south to SR 165. Drive through Wilkeson and Carbonado and cross the one-lane Fairfax Bridge. Then take a slight right turn at the clearly signed fork to Mowich Lake and follow the 12 mile unpaved road to its end.

Parking Pass/Entry Fee

National Park Pass

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Observation Rock

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