Waterkeeper Alliance


Anza Trail Coalition

The best place to experience the river is along the Juan Bautista de Anza National Historic Trail. The AT, a 1200 mile long route commemorating the historic journey of Colonel Anza and 240 settlers to found San Francisco, was established on the ground in Santa Cruz County by a local volunteer group, the Anza Trail Coalition of Arizona

Through sheer hard work and persistence, this small group not only provided the first public access to the river (which was entirely privately owned at the time of the Trail’s establishment), but also continues to expand and maintain this spectacular equestrian/hiking path.

For the best riparian experience, find the Trail anywhere between Rio Rico and Tubac. Trailhead access can be found at:

  • Tubac Presidio State Park
  • Tumacacori Mission National Park
  • Santa Gertrudis Lane, off of the East Frontage Road about 1/8 mile south of Tumacacori Mission National Park
  • Just east of the bridge on Palo Parado Road in Rio Rico

An overview of the Trail can be seen on the National Park Service website at

You can also download a map from the local Anza Trail Coalition at:

Sonoran Institute

Global Community Communications Alliance

Tumacacori Mission National Park

Santa Fe Ranch Foundation

Tucson Audubon Society

PARA (Patagonia Area Resource Alliance) Watchdogs

Watershed Management Group

Tubac Presidio State Historic Park