Are you saying “make it stooooop” when it comes to development of the D System (D-System) ski and snowboard descent rating system? The D System continues to get revisions and, I hope, improvements. Check out the D System here. Please join the discussion here.

WildSnow.com publisher emeritus and founder Louis Dawson has a 50+ years career in climbing, backcountry skiing and ski mountaineering. He was the first person in history to ski down all 54 Colorado 14,000-foot peaks, has authored numerous books about about backcountry skiing, and has skied from the summit of Denali in Alaska, North America’s highest mountain. He published his memoir, Avalanche Dreams: A Memoir of Skiing, Climbing, and Life in 2024.
