Are the Teton Mountains Part of the Rocky Mountains?

Yes. The **Teton Range** (the Tetons) is a **major subrange of the Rocky Mountains**.

Located primarily in **Wyoming** (Grand Teton National Park) with the southern tip extending into **Idaho**, the Tetons rise dramatically from the Jackson Hole valley—no foothills, just a sheer 7,000-foot escarpment. The highest peak, **Grand Teton**, reaches **13,775 feet (4,199 m)**.

Geologically, they are the **youngest major range in the Rockies** (uplift began ~9 million years ago along the Teton Fault), giving them their iconic, jagged, glacial-sculpted profiles. They are a defining, iconic segment of the Middle Rocky Mountains physiographic province.