Tree Planting at Rock Ledge Spring
July 27, 2026Join us for a fun day clearing out any re-growing Arundo and planting native trees and shrubs at this remarkable oasis in town.
Searching for Springs in Sierra Los Ajos: A Challenging and Wonderful Experience
July 21, 2026Hi, we are Nayeli and Sofía, students of Environmental Sciences Engineering at the University of Sonora in Hermosillo, and we’re doing our professional internships with Sky Island Alliance. We just…
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Our First Encounter in Sierra La Madera
July 8, 2026Dariana Valdez and Ximena Velásquez, students of Environmental Sciences Engineering at the Universidad de Sonora and professional interns at Sky Island Alliance, tell us about their experience in Sierra La…
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A New Stage for Spring Monitoring in APFF Bavispe
July 7, 2026In recent years, water has become a very scarce resource in the region, due to several factors, including the overexploitation of aquifers, rivers, and reservoirs for mining, overgrazing, climate change,…
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Help Survey Springs Along the San Pedro
May 27, 2026This June, in partnership with The Nature Conservancy, Sky Island Alliance is supporting a Spring Seeker campaign along the San Pedro River, and we’re in need of self-motivated volunteers to…
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Workshop: Springs Trip Planning and Navigation
May 4, 2026Join SIA staff for an evening at our Tucson office getting ready for upcoming volunteer trips to visit springs within the Sky Islands. Topics covered will include: reading maps and satellite images, navigation aids on desktop computers and smartphones, making tracks and reading elevations and contours on maps, planning backcountry vs. trail walks, etc. With these skills, you’ll be ready to volunteer with confidence.
Our Work Ahead After a Record-Breaking Winter and Spring
March 31, 2026Across the Sky Islands, the past six months have been a strange brew of climate disruption. Plants that typically flower during monsoon bloomed in November, and we had a record-breaking winter that felt…
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Workshop: Springs Trip Planning and Navigation
March 3, 2026Join SIA staff for an evening at our Tucson office getting ready for upcoming volunteer trips to visit springs within the Sky Islands. Topics covered will include: reading maps and satellite images, navigation aids on desktop computers and smartphones, making tracks and reading elevations and contours on maps, planning backcountry vs. trail walks, etc. With these skills, you’ll be ready to volunteer with confidence.
Spring Seeking in the Catalinas
February 26, 2026Join us for some wild and beautiful hikes on the east side of the Catalinas, near Redington Pass, as we survey springs by day and car camp at night.
Workshop: Springs Trip Planning and Navigation
January 20, 2026Join SIA staff for an evening at our Tucson office getting ready for upcoming volunteer trips to visit springs within the Sky Islands. Topics covered will include: reading maps and satellite images, navigation aids on desktop computers and smartphones, making tracks and reading elevations and contours on maps, planning backcountry vs. trail walks, etc. With these skills, you’ll be ready to volunteer with confidence.