Beartooth Pass. Beartooth Pass is the summit of the Beartooth Highway, a scenic route connecting Red Lodge, Montana, to the Northeast Entrance of Yellowstone National Park in Wyoming. Known for breathtaking alpine scenery with high mountain peaks, glacial lakes, and diverse ecosystems, it reaches over 10,000 feet elevation and is often called "the most beautiful drive in America". The highway is usually open seasonally from late May to mid-October due to heavy snowfall. Please note all photos, v