Old Faithful Inn

Old Faithful Inn in Yellowstone National Park, Wyoming, is a log lodge built in 1903–04 to designs by Robert Reamer, who was only 29 at the time. According to the National Park Service, it is considered the largest log structure in the world. The lobby rises about 28 meters (92 feet) to the gable, and the log framework carries seven stories. In the middle of the hall stands a stone fireplace about 26 meters (85 feet) tall and weighing roughly 450 metric tons (500 short tons). Mostly local lodgepole pine was used, and the foundation is made of rhyolite from the Yellowstone caldera.

The entrance is oriented so that the porch looks out toward the Old Faithful geyser, and the porch roof serves as a viewing platform. Rooms have no air conditioning, Wi-Fi or television. The lodge is normally open from May to mid-October, so the 2026 season has usually ended by October; dinner reservations are required. The building became a National Historic Landmark in 1987 and survived the 1959 Hebgen Lake earthquake without fatalities, although the dining room chimney collapsed.