16 miles SW of central Phoenix; go west on Papago Freeway (I-10) to 91st Avenue exit. Drive south for 5 miles to Broadway Road. Continue south for 1 mile to a small paved driveway on the right side of the road.
Park on either side of the driveway to avoid blocking the gate. Carpooling is encouraged as parking is limited.
Sorry, there are no restrooms, water fountains, garbage bins, or maintained trails at Tres Rios, so plan accordingly.
