From City of Tucson Department of Transportation website:
The El Paso and Southwestern Greenway will be a 6-mile long multi-use path for bicyclists and pedestrians. The pathway will extend along a corridor that was once used by the railroad, from north of downtown Tucson, through the City of South Tucson to the Kino Sports Complex. The new path will be car-free and will connect to other regional bikeways and to many of the neighborhoods that the path travels through.
Disclaimer: All project trails listed on TrailLink.com are in various phases of development and may not be open for public use. Rails-to-Trails Conservancy does not manage any trails listed on TrailLink.com. To learn more about the current status of trail development, please look in the "Related Links" section below to find contact information for the local organization or agency responsible for trail management.