Twin Sisters Range Rock Climbing

Peregrine falcons select nest sites on cliffs in the Upper Skagit Valley, including the Climbing Management Areas of Newhalem West (Ryan’s Wall) and Newhalem East. As required in the NPS Superintendent’s Compendium, these areas will be closed to all public from March 1st to July 15th of each year, or until the young falcons have fledged or NPS staff have determined that nesting will not occur on a specific wall during this period. Access Fund, Washington Climbers Coalition and NPS partner on a volunteer raptor monitoring program to determine nesting activity. Contact the NPS and/or WCC for updates.