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Elevation: 4,200 ft
GPS: 34.01693, -116.16366
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Page Views: 5,342 total · 27/month
Shared By: C Miller on Oct 11, 2007 · Updates
Admins: Greg Opland, C Miller, Gunkswest, Mike Morley, Adam Stackhouse, Salamanizer Ski, Justin Johnsen, Vicki Schwantes
Warning Access Issue: Climbing Regulations/Seasonal Raptor Closures DetailsDrop down

Description Suggest change

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 Suggest change

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.

5 Total Climbs

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Classic Climbing Routes at School Boulder

Mountain Project's determination of the classic, most popular, highest rated climbing routes in this area.
V4 6B
 4
Mumbles Mumblephone
Boulder
Route Name Location Star Rating Difficulty Date
Mumbles Mumblephone
 4
V4 6B Boulder
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