Arizona Partners to Build 1,500-Mile Sun Corridor Trail

Northern Arizona University is collaborating with federal and local partners to develop a new 1,500-mile trail across the state.

Updated on Oct. 23, 2026 in Hiking

Bold vector illustration of a winding dirt path through a desert landscape, representing a recreational trail development project. — Northern Arizona University is partnering with local and federal entities to map and develop the 1,500-mile Sun Corridor Trail across Arizona. AI Illustration. Upload story photo >

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Northern Arizona University has received a National Park Service grant to help develop the 1,500-mile Sun Corridor Trail. The project involves a partnership between the university, the Sun Corridor Trail Association, and various Arizona counties.

Why it matters

The massive trail project is designed to improve community health by providing accessible outdoor space throughout Arizona. It represents a significant infrastructure effort to connect diverse regions through a singular recreational corridor.

The Sun Corridor Trail is planned to span a total of 1,500 miles across the state of Arizona. Funding for the development is provided through a grant from the National Park Service.

The players

Northern Arizona University

Located in Flagstaff, this public research institution is leading the development efforts for the trail.

National Park Service

This federal agency is providing the grant funding and technical assistance through its Rivers and Trails Conservation Assistance Program.

Sun Corridor Trail Association

This organization serves as a key partner in coordinating the planning and construction of the 1,500-mile recreational path.

The details

Researchers at Northern Arizona University are spearheading the collaboration with the Sun Corridor Trail Association and the National Park Service Rivers and Trails Conservation Assistance Program. The effort includes coordination with numerous counties to map and develop the extensive path.

October 23, 2026: The Sun Corridor Trail development was officially announced.

Culture Shift

The project follows a pattern set by the National Park Service Rivers and Trails Conservation Assistance Program to foster community-led outdoor infrastructure. It reflects a growing societal shift toward prioritizing large-scale recreational connectivity over fragmented local parks.

Residents can anticipate future access to an expansive network of outdoor paths that will traverse multiple counties. The trail is intended to integrate into daily life as a resource for physical activity and community wellness across the region.

The takeaway

Large-scale trail projects like this offer residents long-term opportunities for improved physical activity and regional exploration. Planning for the use of such trails should account for the fact that these networks are built in phases over many years.