Back to top. The Flathead Watershed includes all the land that drains into Flathead Lake - a huge area stretching west from the Continental Divide to the Salish Mountains, and from across the Canadian border in the north to the Clark Fork River in the south. All that water moves downhill, toward the Pacific Ocean. Some of it evaporates during the journey. Some of it is used by plants, animals and people along the way.
Some water moves quietly underground.
Some crashes down mighty rapids. Some settles into lakes. If the water stays clean, it nourishes the life and land it passes through. Magnificent snow covered peaks. But the Flathead Watershed is vulnerable.