
Gallatin & Madison Headwaters · Big Sky, Montana
Steward the Source.
Big Sky sits at the headwaters of the Gallatin and Madison Rivers. What we do here flows downstream—to communities, wildlife, and ecosystems across the region.
Supported by 40+ partner organizations




















Who We Are
A coalition of 40+ organizations united around water.
The Big Sky Headwaters Partnership brings together nonprofit, private, local, and state organizations to address water challenges across the headwaters of the Gallatin and Madison Rivers—working together to protect water quality and availability for our community and those downstream.
About UsOur Three Focus Areas
Addressing water challenges from every angle.

More flow. More fish.
Ecological Health
Protecting and restoring the rivers, streams, and habitat that healthy waterways—and healthy communities—depend on.
Explore Ecological Health
Every drop counts.
Water Supply & Availability
Keeping more water in our rivers when it matters most—for fish, wildlife, agriculture, and the communities that rely on these systems.
Explore Water Supply
200M+ gallons reused each year.
Wastewater Treatment & Reuse
Treating water to the highest standards and putting it back to work—for irrigation, snowmaking, and upper watershed recharge.
Explore Treatment & ReuseWhy This Matters
Instead of waiting for a crisis, we're investing in collaborative, proactive solutions.
Big Sky faces water challenges common to mountain communities throughout the American West. Our approach protects clean water and wildlife habitat, supports a thriving local economy, and builds a framework that other communities can learn from and replicate.
40+
Partner Organizations
200M+
Gallons of Water Reused Annually
Since 2016
Years of Collaborative Action
Ready to steward the source?
Whether you're a community member, journalist, or downstream neighbor—there's a place for you in this work.