We're the Geothermal Source in Moose Lake! Moose Lake people in the know turn to Willow River Geothermal for all their geothermal heating and cooling needs. They place their confidence in us to give not only the proper installation and service but also the knowledge to help them get the most from their geothermal systems. Considering a geothermal system of your own? Give our nifty little Geothermal Savings Calculator a whirl. Just load it with your data and marvel at the results. Then, contact us, the Moose Lake, Minnesota, geothermal experts at Willow River Geothermal .