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Summit

Cosho Peak

Washington

About

Cosho Peak is a summit of about 8,322 feet in Skagit County, Washington, inside North Cascades National Park and the Stephen Mather Wilderness. The National Park Service manages the land, and the nearest town is Marblemount, about 24 miles away. The closest trail is Fisher Creek Trail, about 2.5 miles away. Easy Pass Trail and Thunder Creek, a canoeing spot, are both within about 6 miles. Boston Basin, a climbing area, lies about 8 miles off.

Summit Facts

Summit elevation

8,322 ft

Land manager

National Park Service

Elevation from USGS 3D Elevation Program terrain data (about 10 m resolution).

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Location

Cosho Peak

Washington

Name and location: U.S. Geological Survey, Geographic Names Information System (GNIS). Elevation: USGS 3D Elevation Program. View the GNIS record.

Facts about this place

Where it is

Nearest town
Marblemount, Washington · 24 mi
Managed by
National Park Service

Source: Wilderness.net boundaries; NPS Land Resources boundaries; USGS PAD-US 4.1; USGS GNIS populated places

Conditions

Active alerts for North Cascades National Park as of Oct 9, 2026:

Source: NPS Alerts API

Nearby

Source: Roamze catalog (indexable pages within 10 miles, PostGIS distance)

    Cosho Peak — Summit in Washington | Roamze