HomeUSAColoradoBoulderFlatironsSouthJamcrack Spire<Left Crack5.9>Big Dog5.115.10tradFA Jim Erikson, 1978UPDATED BY vietnguyen Tick this climbDescriptionRoutes in Jamcrack Spire1Southeast Chimney5.5Trad2East Face Right5.5Trad3North Wide Crack5.8Trad4Left Crack5.9Trad5Right One5.10Trad 6Big Dog5.11Trad7Holeistic5.10cTrad8Fear Of Flying5.10Trad