Weminuche Wilderness: Map #140

National Geographic Trails Illustrated Weminuche Wilderness Map #140 — waterproof, tear-resistant, scale 1:63,360. Comprehensive coverage of Colorado's largest wilderness area including the Chicago Basin, Needle Mountains, Grenadier Range, Continental Divide Trail, and Colorado Trail. GPS-compatible.

The National Geographic Trails Illustrated Weminuche Wilderness Map covers Colorado's largest wilderness area in the heart of the San Juan Mountains. The Chicago Basin, Needle Mountains, and Grenadier Range are mapped in detail with all trails including the CDT and Colorado Trail, 14er approach routes to Mount Eolus, Sunlight Peak, and Windom Peak, trailhead locations, and GPS coordinates.

Key specs

• SKU: NGTI140
• Map number: 140
• Scale: 1:63,360
• Coverage: Weminuche Wilderness, Colorado (San Juan Mountains)
• Material: Waterproof, tear-resistant paper
• Features: Trails, CDT, Colorado Trail, 14er routes, trailheads, GPS coordinates

Why it works

The Weminuche Wilderness is Colorado's largest wilderness area and one of the most remote — the only practical access to the Chicago Basin is via the Durango & Silverton Narrow Gauge Railroad, making accurate trail and terrain mapping essential before you step off the train. The 1:63,360 scale provides the detail needed to navigate the complex terrain between the Needle Mountains and Grenadier Range where trails are minimal and route-finding is critical. Waterproof construction survives the San Juan Mountains' frequent afternoon thunderstorms.

Ideal for

Mountaineers, backpackers, and wilderness hikers exploring the Weminuche Wilderness's Chicago Basin, 14ers, and CDT corridor in the San Juan Mountains. See also NGTI141 (Telluride, Silverton, Ouray) for adjacent coverage.