Map of CDT: The Continental Divide Trail

The Continental Divide Trail (CDT) is a challenging and rewarding long-distance hiking trail stretching approximately 3,100 miles along the spine of the Rocky Mountains in the United States. It traverses five states: New Mexico, Colorado, Wyoming, Idaho, and Montana. Unlike the Appalachian Trail and the Pacific Crest Trail, the CDT is still considered incomplete, with a significant portion consisting of road walks or temporary routes.

Navigating the Complexity

Mapping the CDT is an ongoing project due to its incomplete nature and evolving routes. Hikers rely on a combination of resources for navigation, including:

• Guidebooks: Several guidebooks, such as those by Jonathan Ley, provide detailed descriptions of the route, including mileage, water sources, campsites, and potential hazards.
• Maps: The US Forest Service, Bureau of Land Management (BLM), and the Continental Divide Trail Coalition (CDTC) provide maps of specific sections. Topographical maps (topo maps) are crucial for understanding elevation changes and terrain.
• GPS Devices and Smartphone Apps: GPS devices and smartphone apps like Gaia GPS, FarOut (formerly Guthook Guides), and Avenza Maps are popular. Users can download maps and track their progress even without cell service. These apps often include crowd-sourced information about water sources and campsites, updated by other hikers.
• CDTC Website: The Continental Divide Trail Coalition website is a vital resource, providing information on trail conditions, closures, and alternate routes.

Key Features and Terrain

The CDT’s diverse landscape necessitates careful mapping and planning. Key terrain features include:

• New Mexico: Characterized by high desert landscapes, mesas, and canyons. Water sources are often scarce, requiring careful planning and water carries.
• Colorado: Features the highest elevations of the CDT, with challenging mountain passes and stunning alpine scenery. Snow conditions can be a significant factor, especially early or late in the hiking season.
• Wyoming: Offers diverse terrain, including the Wind River Range, Yellowstone National Park, and the Great Divide Basin. The Great Divide Basin is a large, arid region with limited water sources.
• Idaho/Montana: This section traverses the rugged mountains of the Northern Rockies, with dense forests, pristine lakes, and abundant wildlife. Navigation can be difficult due to overgrown trails and unmarked sections.

Challenges in Mapping

Several factors contribute to the ongoing challenge of mapping the CDT:

• Incomplete Trail: As mentioned, a significant portion of the CDT is not yet a single-track trail, forcing hikers onto roads or cross-country routes.
• Changing Conditions: Trail conditions, including water availability, snow cover, and trail closures, can change rapidly, requiring hikers to be adaptable and well-informed.
• Remoteness: The CDT traverses remote areas with limited cell service, making it difficult to access updated information or call for help in emergencies.
• Accuracy: Even with advanced technology, the accuracy of maps and GPS data can vary, requiring hikers to use their judgment and navigational skills.

Successfully navigating the CDT requires a combination of thorough planning, reliable mapping resources, strong navigational skills, and a willingness to adapt to changing conditions. The challenge is part of the adventure, rewarding hikers with unparalleled views and a deep connection to the natural world.