Benos Aires National Wildlife refuge
Visit a landscape of rippling grassland flanked by mountains, and riparian zones rich in bird life. Buenos Aires National Wildlife Refuge provides approximately 118,000 acres of habitat for threatened and endangered plants and animals. The semidesert grassland supports the reintroduction of masked bobwhite quail and pronghorns. Prescribed and natural fires play a major role in maintaining and restoring the sea of grass that once filled the Altar Valley. Riparian (wetland) areas along Arivaca Cienega and Creek attract an abundance of birds. Brown Canyon is nestled in the Baboquivari Mountains, where a sycamore-lined stream meanders through oak woodland.
The refuge is open to public use 24 hours a day. Headquarters Visitor Center: 7:30 am to 4:00 pm seven days a week. (closed Thanksgiving, Christmas, and New Year�s Day). Headquarters business office: 7:30 am to 4:00 pm Monday through Friday. Visitor center is closed weekends June 1�August 15.
Arivaca Lake is located in an area of rolling grasslands set against a backdrop of rocky bluffs and distant mountains. This area is home to a number of cattle ranches, and much of the land in the vicinity of the lake is private property. Take that into consideration if you go strolling across the landscape.
Access: Take the Amado Road exit on Interstate 19, head west to Arivaca. Turn south out of Arivaca on FR 216 about a mile then east on FR 39 about 5 miles to a road that turns left (east) to the lake.
Via the Ruby Road: take Interstate 19 north from Nogales 8 miles to the AZ 289/Ruby Road exit, head west 10 miles on this paved road past Pe�a Blanca Lake and continue on FR 39 (unpaved) for 26 miles to the primitive road (FR 4130) that turns right (east) to the lake.
3,750'�Facilities:�Primitive boat ramp�Toilet
Surface temperature here can range from 95 to 105 degrees F in summer