REI Community
School Boulder

Routes Sorted
L to R R to L Alpha
Mantle of the New Adonis 
Mumbles Mumblephone 
Northeast Corner 
Varsity Crank 

School Boulder Rock Climbing 

Photos:  Recent | Best | Popular
Elevation: 4,200'
Page Views: 1,376
Administrators: C Miller, M. Morley, Adam Stackhouse, Salamanizer suchoski, Justin Johnsen, Vicki Schwantes, Kristine Hoffman (sitewide)
Submitted By: C Miller on Oct 11, 2007

84° | 57°

83° | 54°

80° | 51°

72° | 44°

72° | 47°

79° | 50°
You & This Area
Best climbs for YOU in this area
Your opinion of this PAGE:    [0 people like this page.]
Know the location? Show us! We need it for cool new features!
School Boulder. Photo by Blitzo.


Sitting across from the Stem Gem Boulder is this medium sized block with problems on almost every side. Problems range from V-easy on the slabby north side to V6 on the back (south) side with most problems in the V3 and under range.

Mumbles Mumblephone (V4) is the must do problem on this boulder - the sit start bumps it up to V6.

Getting There 

Head east from the Day Use parking lot and then make a left (heading in a northerly direction) following a paved road which runs through the Campground. Continue just past the Triangle Boulder and then make a left into an open area - the boulder will be on your left facing towards the Stem Gem Boulder.

Climbing Season

For the HVCG Bouldering Circuit area.

Weather station 10.0 miles from here

4 Total Climbing Routes

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

Classic Climbing Routes in School Boulder

Mountain Project's determination of the classic, most popular, highest rated climbing routes for School Boulder:
Mumbles Mumblephone   V4 6B     Boulder, 9'   
Browse More Rock Climbing Classics in School Boulder

Featured Route For School Boulder
Rock Climbing Photo: Kristen on Northeast Corner (V-easy), Joshua Tree ...

Northeast Corner V-easy 3  California : Joshua Tree National Park : ... : School Boulder
This fun friction slab climbs the left side of the north face of the School Boulder, which faces towards the famous Stem Gem. A good introduction to the bouldering in the area, this provides insight into the delicate movement necessary to succeed on the more difficult problems. Downclimb via easy slab moves on the right side of the north face....[more]   Browse More Classics in California

Photos of School Boulder Slideshow Add Photo
Rock Climbing Photo: School Boulder. Photo by Blitzo.
School Boulder. Photo by Blitzo.
Rock Climbing Photo: School Boulder South-side. Photo by Blitzo.
School Boulder South-side. Photo by Blitzo.

Comments on School Boulder 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