REI Community
Thunder Mountain

Select Route:
Thunder Mountain Northwest Slopes 

Thunder Mountain Rock Climbing 

Photos:  Recent | Best | Popular
Elevation: 8,591'
Location: 34.26528, -117.60617 View Map  Incorrect?
Page Views: 922
Administrators: jt512, M. Morley, Adam Stackhouse, Salamanizer suchoski, Justin Johnsen, Vicki Schwantes, Kristine Hoffman (sitewide)
Submitted By: Justin Johnsen on Jan 10, 2012
You & This Area
Best climbs for YOU in this area
Your opinion of this PAGE:    [0 people like this page.]


Thunder Mountain is the only developed peak on the Three Tees ridge, with a ski lift serving it on snow years. In dry conditions, a developed trail system makes walking off elementary.

Getting There 

From the 210 freeway in the Upland/Claremont area, drive north to the top of Mount Baldy Road. Most of these areas are reached by parking at Manker Flats (6,000 ft) or the ski lift (6,400'). Timber, and sometimes Telegraph, can be accessed from the south at the Icehouse Canyon Trailhead (5,000 ft). All of these parking areas require a permit to park; activities in the Cucamonga Wilderness may also require a wilderness permit. Visit the ranger station in Mt. Baldy Village on the way up for current information, passes, and wilderness permits.

Climbing Season

For the Angeles National Forest area.

Weather station 1.4 miles from here

1 Total Climbing Routes

['4 Stars',0],['3 Stars',1],['2 Stars',0],['1 Star',0],['Bomb',0]

Featured Route For Thunder Mountain
Rock Climbing Photo: The bend north from Big Butch Wash to the bottom o...

Thunder Mountain Northwest Slopes   California : Los Angeles Basin : ... : Thunder Mountain
This is a nice local spot for Los Angeles area residents to practice their winter mountaineering fundamentals. Some winters there won't be enough snow to bother with this. Follow the local weather and trip reports and you'll find the sweet days.From the road, follow Big Butch Wash east/northeast up a moderate snow slopes. Watch out for occasional descending hazards: boulders from the steeper couloirs above, or off-piste snowboarders and skiers shredding down the wash from Thunder Mountain.A crux...[more]   Browse More Classics in California

Comments on Thunder Mountain Add Comment
Show which comments
- none yet -

Mountain Project

The Definitive Climbing Resource

MTB Project

Next Generation MTB Trail Maps

Powder Project

Backcountry Ski Maps & Secret Stashes
FREE Stickers · Gyms · RSS · School of Rock · Contact · About