A beer case at a King Soopers store in Glendale, Colorado.

(Megan Verlee/CPR News)

Drink beer, help rivers. That's the mission behind Many Rivers Brewing, a Western Slope craft beer operation that doubles as a conservation project. Many Rivers brews an amber ale and IPA, and 100 percent of the profits from those two beers goes to river improvement projects. The brewery has donated the boozy benefits to the Colorado Riverfront CommissionMesa Land TrustRoaring Fork Conservancy and others.

Tim Carlson, Many Rivers' beer brewer and board president, talked to Colorado Matters about founding the eco-friendly brewery. Before picking up the pint glass, Carlson was an environmental engineer who spent more than 40 years cleaning up rivers.