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All Locations > California > San Francisco B… > Mount Diablo St… > Boy Scout Rocks > Lower Tier > Diagonal Crack (5.10c 6b 20 VII 20 E2 5b)
John after a whipper when his pro pulled out. Additional gear is not a bad idea.
ID 6200275 ·
The rope in the picture displays where to set up a top rope.
This route is a bit hard to toprope but I think I could have done a better job! Look out for that swing Brad!
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Brad Allender
Aug 11, 2005
“John after a whipper when his pro pulled out. Additional gear is not a bad idea.”  

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Nearby Photos

Birds nesting in the crack about two thirds of the way up, be careful to reach to deep into the crack.
Approaching the final moves, a long clip to the bolt up and right is quite hard. As the bolt hanger is about 1" from the rock, lassoing the bolt itself is a good idea. A hard, thin, long reach is then required to reach a final jug. Two new bolts are found just left around the corner on the face.
Gwen Rose follows 'Diagonal Crack' (5.10) at Mt Diablo. Photo by Tony Bubb, 9/03.
If you don't truly trust your feet on the thin face holds, this climb can be very pumpy. Gear is good but you need a large variety of gear as the placements vary tremendously. Hexes, stoppers, cams, and even tricams make for good placements. Smaller sizes too if the rock doesn't shear.
Thin edging and secure foot jams make for interesting sequences up the crack.
The rope in the picture displays where to set up a top rope.
John after a whipper when his pro pulled out. Additional gear is not a bad idea.
This route is a bit hard to toprope but I think I could have done a better job! Look out for that swing Brad!
Brad about 1/2 way up. The final crux section is up above after the little alcove.
Brad about 15' up Diagonal Crack above initial crux.