Glacier National Park straddles the Continental Divide. The divide defines watersheds. West of the divide water flows to the Pacific Ocean and east of the divide water flows to the Gulf of Mexico or Hudson Bay. Because water from the park flows in three different directions, Glacier contains a rare geologic feature-a triple divide. Water from Glacier passes through many different places on its way east or west. The people and animals living around Glacier depend on this water. For instance, Lake McDonald eventually flows into Flathead Lake via the Flathead River. Along the way that water passes through Columbia Falls and Kalispell.
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