Built under the direction of General William Clark, joint commander of the famous Lewis and Clark expedition, Fort Osage was established in 1808 as a military outpost in the newly acquired Louisiana Territory. The Fort’s purpose was to provide a military presence in the territory in order to assure Spain, France and Great Britain that the United States meant to protect its territory by military strength and to establish healthy relations with the Native American population in the territory.
Fort Osage has been partially reconstructed and is currently a park owned and operated by Jackson County Parks + Rec.
Hours: Fort Osage is open to the public Tuesday through Sunday from 9:00a.m. to 4:30p.m. year round.
Admission Fees: Adults: $8.00, Seniors (62 and over): $4.00, Youth (5-13): $4.00, Anyone under 5 is free.
Phone: (816) 650-3278
Address: 107 Osage Street, Sibley, MO 64088
To ensure the safety of our guests and the integrity of this Historic Site, private pets are NOT permitted.
Grand Festival of Chez les Canses
Saturday, September 24
Time: 9:00 a.m. - 4:30 p.m.
Explore how early French settlers lived at the confluence of the Missouri and Kansas Rivers in the late 1700s. Re-enactors will interpret everyday life skills common on the frontier. Artisans will display custom made wares, both decorative and utilitarian, which were essential to these early settlers.
30th Annual Fall Muster
Saturday, October 22 – Sunday, October 23
Time: 9:00 a.m. – 4:30 p.m.
Executed with historical accuracy, this annual re-enactment relives events surrounding the prelude to the War of 1812, as Fort Osage hears for the first time war has been declared with Britain. Musket and cannons are made ready, civilians are conscript, and both residents and soldiers stationed at this remote frontier outpost are on alert. Visitors can literally feel the tension of the unknown and share the fear and excitement with our re-enactors as Fort Osage prepares for war!
This website is maintained by The Society of Friends of Fort Osage.