Petrified Tree

The Tower Ranger Station, though not on the National Register of Historic Places, is a remodeled reconstruction of the second Tower Soldier Station, which was built in 1907. The Roosevelt Lodge was constructed in 1920 and has been determined eligible for the National Register of Historic Places. The Roosevelt National Historic District also includes the Roosevelt cabins.

This grouping of thermal springs along the Yellowstone River signals the downstream end of the Grand Canyon of the Yellowstone. The steep, columnar basalt cliffs on the opposite side of the river from the overlook are remnants of an ancient lava flow, providing a window into the past volcanic forces that shaped much of the Yellowstone landscape. The gorge and cliffs provide habitat for numerous wildlife species including bighorn sheep, red-tailed hawks, and osprey.

This 132 ft waterfall is easily accessible from the main park road and is framed by eroded volcanic pinnacles.

Along the Northeast Entrance Road east of Tower Junction, this area contains the largest concentration of petrified trees in the world. There are also excellent samples of petrified leaf impressions, conifer needles, and microscopic pollen from numerous species no longer growing in the park.

Mt. Washburn is the main peak in the Washburn Range, rising 10243 ft above the west side of the canyon. It is the remnant of volcanic activity that took place long before the formation of the present canyon. Mt. Washburn was named for Gen. Henry Dana Washburn, leader of the 1870 Washburn-Langford-Doane Expedition. One of the best places in the park for spotting bighorn sheep and also a great spot for wildflowers, a trail leads up the mountain to a lookout tower near the 10243 ft summit. The altitude may affect some hikers, so it is best to be acclimatized to the higher elevation before attempting this hike. In addition, bring extra layers, even in the summer, since the top can be windy and cold.

The Lamar Buffalo Ranch was built in the early part of the century in an effort to increase the herd size of the few remaining bison in Yellowstone, preventing the feared extinction of the species. Buffalo ranching operations continued at Lamar until the 1950s. The valley was irrigated for hay pastures, and corrals and fencing were scattered throughout the area. Four remaining buildings from the original ranch compound are contained within the Lamar Buffalo Ranch Historic District (two residences, the bunkhouse, and the barn) and are on the National Register of Historic Places. Visitors can drive by to view the historic buffalo ranch, however, there are no facilities open to the general public at this location.