Mach's Couloir

Snoqualmie Pass · King County · WA

0.4 miDistance
5 ftTotal climb
853 ftTotal descent
4,942 ftHigh point
4,094 ftLow point
expertDifficulty
backcountrySurface

Elevation profile

Mach's Couloir is a 0.4-mile expert trail near Snoqualmie Pass, in King County, WA. It climbs 5 ft and descends 853 ft, between 4,094 ft and a high point of 4,942 ft. The surface is backcountry. Mapped for winter sports.

Trail data © OpenStreetMap contributors (ODbL). Elevation: USGS 3DEP. Updated 2026-07-21. Open the interactive map for routing, weather, and offline use.