The Tatoosh Range, located in the southern end of Mt. Rain-Here Nat. Park, is made up of 11 named peaks. This 3 peak link-up is one of the most popular, if only because of the easy access from the trailhead. A popular Mazamas climb, this classic alpine scramble has a round trip hike of just 4 miles and 1,700 vertical feet, and thus can be done by most climbers of moderate fitness in a reasonable day. Along with a park entrance fee, all of the Tatoosh peaks offer spectacular views of Mt. Rainier - given clear weather, naturally. This is good beginner trip and fairly close to home. Be prepared for a short rappel on Castle and possible a handline on Pinnacle, depending on your comfort level on exposed 3rd or easy 4th class rock. In early season, an ice axe can be useful. "Tatoosh" means 'nourishing breast " in the local native American language.


The Castle is a box shaped peak on the immediate E of Pinnacle Peak, often climbed in conjunction with Pinnacle and Plummer peaks. There is a short rock pitch to gain the summit. Incredible views of Mt. Rainier await on a clear day. A rope and basic rock pro can help with beginner climbers.

Activity Notes

This is a reconnaissance climb for the leader, who has not climbed the route for some time.

Please review the Mazamas Climber Etiquette Guide and the following information prior to applying for this climb.

Overview: We will meet at the Reflection Lake trailhead at 8:00a and be ready to hike in by 8:30a. We will take the Pinnacle Peak trail to the saddle between Plummer and Pinnacle Peak.  From the saddle, we will traverse to the east on the south side of the mountains to The Castle.  We will ascend The Castle on top rope (low 5th class), rappel off The Castle, retrace our steps to the saddle, and return to the trailhead. Total round trip distance is ~4.0 miles with an elevation gain of ~1,600 ft. 

Skills Required: Climbing up to low 5th class on belay and / or fixed line, rappelling, and scrambling.

Camping: We will camp the night before the climb at a campsite to be determined.

Costs: Please account for these additional costs when deciding to apply:

Camping: Cost to be determined based on location, number of cars, and number of people (paid to Climb Leader)

  • Entry to Rainer National Park: $30 per car (paid to National Park), passes are also available (see info here)
  • Carpool gas contribution: suggested $22 per person (paid to carpool driver)
Other Information
Driving Distance from Portland 160 miles
Driving Time from Portland 3 hours
General Route Info Mt. Rainier NP, Park HQ: 360-569-2211 ext 2334
Expected Duration Car to car in one day
Interesting Features Mountain Views
Relevant Books Cascade Alpine Guide: Columbia River to Stevens Pass by Fred Beckey 75 Scrambles in Washington by Peggy Goldman
Relevant Maps USGS 7 minute series, Tatoosh Lakes and Mt. Rainier East; Green Trails: Mt Rainier East / Packwood Google map https://goo.gl/maps/w1aJeyYaDFw
Useful Links