HomeUSACaliforniaLake TahoeI-80 CorridorAuburn and Grass ValleySouth Yuba River: 49 CrossingGiant Boulder StackCrossover5.45.9trboulderingFA Probably not meCREATED UPDATED Tick this climbDescriptionProtectionRoutes in Giant Boulder Stack1Well then5.7Tr · Bouldering2Crossover5.4Tr · Bouldering3Um...5.9Tr · Bouldering