The front gate of a replica of Fort Clatsop, the last encampment of the Lewis Clark Expedition before returning to St. Louis. The fort, built over the course of three weeks in December 1805, was occupied until March of 1806. The fort is located on the Lewis and Clark River, not far from the mouth of the Columbia River and the Pacific Ocean, and close to the modern city of Astoria, Oregon. The first replica was built in 1955, from a set of drawings in William Clark’s journals. That fort burned down in 2005, and was replaced the following year by a crew of 700 volunteers, who replaced it with a replica truer to the character of the original structure.