Fort Klamath, Military outpost in Klamath County, Oregon, United States.

Fort Klamath spans 8 acres between Crater Lake National Park and Upper Klamath Lake, with a museum housed in a replica of the original guardhouse. The remains of other buildings dot the grounds, offering glimpses into 19th century military operations.

Fort Klamath was established on September 5, 1863, to protect settlers in the Pacific Northwest and served during the Modoc War of 1872–1873. The decision to close it came in 1889, but after a final winter with more than 20 feet of snow, Company I of the 14th Infantry Regiment left on June 23, 1890, for Vancouver Barracks.

The grounds hold burial sites of four Modoc tribal members, including Captain Jack, who were executed following the 1872-1873 conflict. These graves serve as solemn reminders of the tragic events tied to the post.

The museum on the grounds is open to visitors and displays exhibits about military operations and Native American relations in the 19th century. Plan for a moderate visit to walk through exhibits and explore the quiet grounds.

The fort's last winter brought more than 20 feet (6 m) of snow, but the troops were not evacuated: Company I of the 14th Infantry Regiment left on June 23, 1890, moving to Vancouver Barracks. The closure had been decided in 1889, once settlers no longer needed protection.