May 23 (Day 3): Three Forks, Montana Once again we hit alot of rain along the way. We camp at Lewis and Clark Caverns State Park near Three Forks, Montana. We are within the watershed valley system of both the Missouri and Mississippi rivers drainage basins — and is historically considered the birthplace or start of the Missouri River. The Yellowstone River also followed us for most of our journey from the North Dakota border. The town is called "Three Forks" because the Jefferson, Madison, and Gallatin Rivers converge to form the Missouri River — traditionally called the longest River in North America. Flooding was evident everywhere. It was fortunate the interstate stayed open. The Lewis and Clark Expedition passed here in 1805 never knowing the caverns (caves full of stalagmites, stalactites, colums, helicites, etc). 103
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