All Locations > California > San Francisco B… > E Bay Area > Mt Diablo SP > Boy Scout Rocks > Lower Tier

Ozone (a.k.a.) The Arch

Name: Ozone (a.k.a.) The Arch
Rating: 3.0

5.10c YDS 6b French 20 Ewbanks VII UIAA 20 ZA E2 5b British

Routes in Lower Tier

L › R R › L A › Z

	Amazing Face S 5.10a 6a 18 VI+ 18 E1 5a
	Black Lives Matter S,TR 5.11a 6c 22 VII+ 22 E3 5c
	Bolt Route S 5.11b/c 6c+ 23 VIII- 24 E4 6a
	Chameleon S 5.12a 7a+ 25 VIII+ 25 E5 6a
	Chamosaur S 5.12a 7a+ 25 VIII+ 25 E5 6a
	Chimney T 5.7 5a 15 V+ 13 MVS 4b
	Diablo Jam T,TR 5.7 5a 15 V+ 13 MVS 4b
	Diagonal Crack T 5.10c 6b 20 VII 20 E2 5b
	Dinosaur S 5.12b 7b 26 VIII+ 26 E5 6b R
	Dogzilla S 5.12b 7b 26 VIII+ 26 E5 6b
	Earthcling S 5.11b 6c 23 VIII- 23 E3 5c
	Godzilla S 5.12d 7c 28 IX 28 E6 6b
	Gruntle S 5.10a/b 6a+ 19 VI+ 19 E2 5b
	Old Dino/Miwok S 5.11 6c+ 23 VIII- 23 E4 5c
	Once was Lost S 5.10c 6b 20 VII 20 E2 5b
	Ozone (a.k.a.) The Arch T,TR 5.10c 6b 20 VII 20 E2 5b
	Ozone Direct T,TR 5.11a 6c 22 VII+ 22 E3 5c X
	Polaris S 5.12b 7b 26 VIII+ 26 E5 6b
	Railing Moss S 5.11b 6c 23 VIII- 23 E3 5c
	Stegosaurus S 5.11b 6c 23 VIII- 23 E3 5c
	Toast S 5.10c 6b 20 VII 20 E2 5b

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Type:	Trad, TR, 55 ft (17 m)
FA:	Claude Fiddler and Patrick Sawyer, ca. 1974
Page Views:	9,184 total · 32/month
Shared By:	Brian Quiter on Apr 6, 2002 · Updates
Admins:	Aron Quiter, Mike Morley, Adam Stackhouse, Salamanizer Ski, Justin Johnsen, Vicki Schwantes Page Updates (admin only)

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Explore this route in 3D

Use onX Backcountry to explore the terrain in 3D, view recent satellite imagery, and more. Now available in onX Backcountry Mobile apps! For more information see this post.

Access Issue: Falcon Nesting Closure at Castle Rock Details

Castle Rock in Pine Canyon and the Wanna Get Away areas are closed for peregrine falcon nesting season, from February 1 through July 31st every year. All other Mount Diablo area crags are open to climbing. The news release is linked here parks.ca.gov/NewsRelease/493.

Description

Lieback the left side of the arch until you're almost to the top, then reach left to the thin crack above the roof, traverse this up and right until it joins a wider, vertical crack. Follow this one to the top. Ozone is a really unique climb that requires a lot of upper body strength.