
CELEBRATING 10 YEARS
In celebration of our 10th year, Montana Aquatic Resources (MARS) is now Montana Freshwater Partners.
Formerly known as Montana Aquatic Resources Services, we are a non-profit organization that has worked since 2011 to enhance and preserve the vitality, health and resilience of Montana’s rivers, streams and wetlands.
What We Do
Explore the science and impact of our innovative programs and projects
Donate
Your generosity makes a big difference for Montana’s rivers, streams, and wetlands
The Shape of a River
Learn about the story of one man’s journey to leave a legacy to his children and on the the longest free flowing river in the lower 48 states.
A collaborative cinematic effort between Montana Freshwater Partners and Ocean Media Institute, this film has been featured nationally and internationally at FILM festivals listed below.

“Living here every day and experiencing the Yellowstone River every day you start getting more of feeling that this is so much bigger than me. There is so much more going on here that is out of my control. And when you embrace that notion that it’s not about control it’s about respect and really start to appreciate the Yellowstone for what it is, it’s the life blood of this land.”
— Larry Rau, rancher and landowner:

Why Our Work is Important
Montana Freshwater Partners exists to enhance and preserve the vitality and resilience of Montana’s aquatic ecosystems. Our 501c3 nonprofit organization specializes in science-backed and creative technical solutions that benefit people, communities, industry, and our shared natural environment. We think outside the box and pursue market-based and traditional funding sources to find solutions that benefit landowners, conservationists, the public, and the natural world.