Peak Mountain 3Add photo Edit Photo MapCopy LinkHomeUSACaliforniaSan Francisco Bay AreaCastle Rock Area* Castle Rock Area BoulderingIndian Rock SideClamshell Boulder<The ClamV4Clam DiggerV9boulderingFA Jeremy Meigs, ~1999UPDATED BY vietnguyen Tick this climbDescriptionRoutes in Clamshell Boulder1Static Reach SitV10Bouldering2Static ReachV8Bouldering3Static PinchV3Bouldering4The ClamV4Bouldering5Clam DiggerV9Bouldering