Fort Osage National Historic Landmark

About Fort Osage

Step back in time and experience the lives of the men and women who secured the American frontier at Fort Osage National Historic Landmark.

Built in 1808, under the direction of William Clark of the Lewis and Clark expedition, Fort Osage served a dual roles as both a military garrison and a trade center.

Today, authentically attired historical interpreters take visitors on a journey through Fort Osage’s past. Visitors will enjoy breathtaking views of the reconstructed historic site that overlooks the Missouri River as they learn about the daily life of military, civilian and Native American populations at Fort Osage and explore museum exhibits at the Fort Osage Education Center.

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CLOSED thru May 15! 

  • Open year-round
  • Tuesday - Sunday
  • 9 a.m. - 4:30 p.m.
  • Closed July 4th
  • Closing at Noon, December 24 and 31; all day December 25 and January 1 


  • Adults: $8
  • Children (5-13): $4
  • Seniors (62 and over): $4


Phone: 816-650-3278
Alternate Phone: 816-229-8980


107 Osage Street
Sibley, MO 64088

Sibley is on the Missouri River, 14 miles northeast of Independence. 
Driving Directions From KC:
Take 24 Highway east to Buckner, Missouri. Turn north at Sibley Street (BB Highway) and travel 2-3 miles, while watching carefully for directional signs. Drive through Sibley following the signs to Fort Osage.