Arivaca Creek Loop and Mustang Trail

Begin your hike by taking the trail to the right and hiking gently down the riparian drainage. As you get closer to the main channel, the number of birds fluttering through the trees is quite noticeable. Hike through the immense cottonwood trees, smaller mesquite trees, and other brush growing in the wash. I'm not much of a bird person, but this place has many colorful birds. For once, I took field glasses and was delighted by seeing their radiant, colorful plumage up close.Cross the drainage, and eventually you'll reach Mustang Trail. The trails are well marked, and there are several signs to define the trail. Pop out of the riparian vegetation if you choose Mustang Trail, and put the field glasses away. You'll quickly find a desert scene with tall grass among the smaller mesquite trees, cactus, and other desert vegetation. The trail surface is rocky. With quick feet--and hands--hop over the rocks and dodge the stickers that are constantly trying to poke, grab, and rip at your skin and clothes. The trail gently ascends a ridge, passes through a barbed-wire fence, pops over a saddle, and eventually goes to the back side of the mountain before steeply climbing to the summit for a great 360-degree view of the area. Drop back down the mountain and unpack the field glasses before entering the riparian zone. You'll get a few more views of the colorful birds as you make your way back to the trailhead on the Arivaca Creek Trail.

The original refuge boundary was the Buenos Aires Ranch, purchased by the U.S. Fish & Wildlife Service.