HomeUSAMontanaNorthwest RegionBlackleaf CanyonBlow-Hard WallThe Venturi Effect5.12aG-Force5.10b5.10asportFA Wayne Harney and Merry McKenney 2003UPDATED BY vietnguyen Tick this climbDescriptionRoutes in Blow-Hard Wall1Rainy Days and Bad Belay5.11cSport2Trad Climbers Beware5.12aSport3Beer Run5.10aSport4Jaws of Life5.11aSport5Pissing In the Wind5.6Sport6Fly Boys5.9+Sport7Top Gun5.9Sport8Blow Hard5.10dSport9The Venturi Effect5.12aSport10Pull or Eject5.10aSport 11G-Force5.10bSport12Surface to Air5.8Sport