Montana Facts Starting with 'Y': Yellowstone, Yogo Sapphire, and More
- Yellowstone National Park: First and oldest U.S. national park.
- Yogo Sapphire: Montana's state gemstone, found only in Yogo Gulch near Lewistown.
- Yaak River: Major tributary of the Kootenai River, flowing through northwestern Montana.
- Yellowstone Cutthroat Trout: State fish, native to the Yellowstone River system.
- Yale Mountain: Highest point in the Bitterroot Range, located in Ravalli County.
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