Volunteer in the Sierra San José

October 27, 2025

Join us for a volunteer camping weekend at Ejido Naco, just south of Bisbee. As part of our larger Ranchos Regenerativos program, we will be working with the landowners on the ejido as they create a conservation area within the Sierra San José. Project activities will include trail building and erosion-control structures. For more info and to sign up, contact SIA’s Mexico Program Manager Zach Palma: zach@skyislandalliance.org.

Volunteers at Rancho El Sahuaro

Volunteer at Rancho El Sahuaro

Join us for a volunteer camping weekend at the picturesque Rancho El Sahuaro, just 15 minutes south of the U.S.-Mexico border town of Naco, Sonora. As part of our larger Ranchos Regenerativos program, which aims to integrate traditional ranching practices with land stewardship, we will be working with the landowners on restoration activities at this mixed grassland ranch. For more info and to sign up, contact SIA’s Mexico Program Manager Zach Palma: zach@skyislandalliance.org.

Aravaipa Creek

Aravaipa Canyon Vinca Removal

October 21, 2025

Come join us for a weekend in Aravaipa Canyon Preserve as we resume the fight against invasive vinca!

Volunteers in the Catalinas

Erosion Control in the Catalinas

October 3, 2025

Join us in the Santa Catalina Mountains for a weekend building erosion-control structures in areas burned by the 2020 Bighorn Fire. Together, we can protect springs from landslides and ensure the mountain absorbs even more rain and snowmelt, recharging the aquifer that plants, wildlife, and people like us depend on. Note: Carpooling from Tucson is available, and day-trippers are most welcome. We’ll be camping at Whitetail Campground on Mt. Lemmon.

Malpais Borderlands

Malpai Borderlands Conference

September 26, 2025

Join us in person or virtually at this free annual conference, led by ranchers in southeast Arizona and southwest New Mexico. There are several guest speakers who will present as part of the day’s conference, including SIA’s Eamon Harrity, who will give a talk on the border wall’s impacts on wildlife. Other talks will feature tarantulas, spotted cats, ranching strategies, and rewilding landscapes.

Wildlife and Walls: How Barriers on the U.S.-Mexico Border Impact Wildlife

September 25, 2025

Border walls are spreading around the world, including right here in Arizona. Since 2020, Sky Island Alliance has used motion-activated cameras to study the impacts of border barriers on wildlife movements. Join Eamon Harrity for this in-person talk to learn about these monitoring efforts and how different species respond to border barriers.

Discovery Night: Bats and Snakes

September 16, 2025

Sky Island Alliance presents a special Discovery Night in partnership with the Children’s Museum of Tucson. Free and open to the public, this event will feature live bats and snakes with crafts and expert presentations. At 5:30 p.m. bat biologist Debbie Buecher will present, followed by a 6 p.m. presentation from snake biologist Mike Cardwell. Come learn more about these misunderstood creatures from the experts, and get to see these animals in person, all while enjoying a free night at the museum.

Critters of the Night

September 14, 2025

Join us for a special evening at Saguaro National Park West. SIA Environmental Outreach Coordinator Mónica Montaño and two former interns will be there to give a talk on wildlife creatures of the night and our conservation efforts in Sonora. Afterward, folks will head out into the night to listen and look for critters. Note: Space is limited and reservations are required. Please call 520-733-5158 or visit the Red Hills Visitor Center to sign up.

Tumamoc talks

Wildlife and the Wall: How Animals Navigate Barriers on the U.S.-Mexico Border

September 8, 2025

Border walls are spreading around the world, including right here in Arizona. Since 2020, Sky Island Alliance has used motion-activated cameras to study the impacts of border barriers on wildlife movements. Join Eamon Harrity to learn about these monitoring efforts and how different species respond to border barriers.

Hog-nosed skunk

Skunks of the Sky Islands

September 4, 2025

Did you know there are four different kinds of skunks in the Sky Islands? Learn more about these fascinating creatures in this free online talk, given by SIA Wildlife Specialist Meagan Bethel and hosted by our allies at Pima Master Naturalists.