Erosion control

Erosion Control in the Catalinas

February 24, 2026

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.

Barrel Spring

Barrel Spring Arundo Removal

February 20, 2026

Join us for a morning at a historic Tucson spring, now in an urban setting, as we remove this invasive plant and restore a wildlife oasis.

Bear Canyon

Spring Restoration in Bear Canyon

Help us restore a wildlife oasis by removing invasive grasses and oleander along the Bear Canyon drainage around Rancho Fundoshi Spring. We’ll be working in the soil, bending, kneeling, and using hand tools, picks, and lots of elbow grease.

Rincons flora

Coffee Break: A Floristic Tour of the Rincon Mountains

February 11, 2026

Join us for our next virtual Coffee Break to learn more about the Rincon Mountains’ exceptionally rich and dynamic plant diversity. As with so many of our sky islands, the plants in the Rincons originate from distinct regional floras and overlap across wide elevation ranges and rugged terrain. Our speaker is SIA Botanist Dan Beckman, who just recently joined us after 12 years with Saguaro National Park.

Volunteers in the Catalinas

Volunteer Open House

February 2, 2026

Celebrate the milestones of our hard-working volunteers, socialize with the Sky Island community, and learn about upcoming volunteer events!

This event will be held at the Sky Island Alliance office, with light refreshments provided. Please RSVP by March 19.

Whetstone Mountains

Springs Restoration in the Whetstones

January 20, 2026

Join us for a day of removing invasive species at McGrew Spring in southern Arizona’s beautiful Whetstone Mountains. Closed to the public, the spring is more than two miles from any other water source and is a favorite haunt of coatis, black bears, mountain lions, coyotes, and birds.

Barrel Spring

Barrel Spring Arundo Removal

Join us for a morning at a historic Tucson spring, now in an urban setting, as we remove this invasive plant and restore a wildlife oasis.

Arundo

Barrel Spring Arundo Removal

January 5, 2026

Join us for a morning at a historic Tucson spring, now in an urban setting, as we remove this invasive plant and restore a wildlife oasis.

"A" Mountain

Santa Cruz Watershed Days of Connection

Join us and our allies for this family-friendly event along the Santa Cruz River in Tucson. There will be food, music, and fun, as well as a chance to help clean up along the river.

Las Milpitas

Santa Cruz Watershed Days of Connection

Join us and our allies for this family-friendly event along the Santa Cruz River in Tucson. There will be food, music, and fun, as well as a chance to help clean up along the river.