Cottonwood Fishing Access Site is a major facility within Navajo Lake State Park offering easy foot access to the San Juan River from parking areas located close to river level.

The site features 47 campsites with RV hookups, improved facilities including restrooms and showers, day parking, and a pay station, making it suitable for both day anglers and overnight campers.

Access the site via County Road 4280 (improved dirt road) approximately 1. 7 miles north from Highway 511 near Aztec Bridge.