At 1210 hours, Snohawk 10 and crew were on the ground at a training LZ in the foothills of Snohomish County beginning the checklist for a final screamer suit training evolution when we were notified via VHF by the on-duty SAR deputy of a fallen climber in the Southeast quandrant of Mt. Pilchuck. Reportedly the individual had tumbled an estimated 100 feet. The SAR deputy remained in cell phone contact with subject. Coordinates were plotted at approximately 4750’. The subject had deployed orange tarp as a signaling device.