Montana, USA | Hydrologic Map

Montana's water resources, abundant and generally pristine, are a lifeline for both the land and its residents. The state's rivers, lakes, and meandering streams sustain diverse ecosystems and offer a playground for water-based recreation. Anglers cast lines into the Madison's legendary fly-fishing waters, while kayakers navigate the rapids of the Gallatin River. The serenity of Flathead Lake lures boaters, and paddleboarders glide through crystal-clear alpine lakes in Glacier National Park. Montana's waterways are more than a source of life; they're a source of joy, adventure, and a deep connection to the wild, forging memories that ripple through generations.

This map was created to illustrate the thousands of streams, rivers and lakes in Montana that so many of us know and love. Major river basins are delineated with labels added to aid in identifying the states hydrology.