Between the Patagonia and Santa Rita mountains of southeastern Arizona, within the watershed of Sonoita Creek, lies some of the richest of the remaining riparian habitat in the region. One of few permanent streams left in southern Arizona, it provides for a wide array of diverse species from endangered fishes to butterflies and birds. An Internationally-known destination for birders, the land was originally purchased by The Nature Conservancy in 1966. In fact, this parcel of land, now numbering over 3000 acres, was the very first land purchase they made in Arizona.
It's recognized as a National Natural Landmark.

This is a wonderful place filled with easy, level walking trails along the creek through the woods past some of the largest and oldest Fremont cottonwoods in the country. (That's an old Fremont tree in the photo.) Bring your binoculars and enjoy the beauty of the woods. Benches are located throughout the trail system.