Fort Osage
National Historic Landmark

Fort Osage

Sibley, Jackson County, Missouri
Listed
October 14, 1966
Type
District
Period
Early Republic
Ref No.
66000418

About this property

Fort Osage (also known as Fort Clark or Fort Sibley) was an early 19th-century factory trading post run by the United States Government in western Missouri on the American frontier; it was located in present-day Sibley, Missouri. The Treaty of Fort Clark, signed with certain members of the Osage Nation in 1808, called for the United States to establish Fort Osage as a trading post and to protect the Osage from tribal enemies. It was one of three forts established by the U.S. Army to establish control over the newly acquired Louisiana Purchase territories west of the Mississippi River. Fort Madison in SE Iowa was built to control trade and pacify Native Americans in the Upper Mississippi River region. Fort Belle Fontaine, near St. Louis, controlled the mouth of the Missouri at the Mississippi. Fort Osage ceased operations in the 1820s as the Osage in subsequent treaties had ceded the rest of their land in Missouri to the US. A replica of the fort was constructed on the site between 1948 and 1961. The Fort Osage school district (including Fort Osage High School), which serves northeast Independence and the surrounding area, was named after it.

Location

Sibley, Jackson County, Missouri
39.18780, -94.19269

Categories

PREHISTORICHISTORIC - ABORIGINALCOMMERCEHISTORIC - NON-ABORIGINALEXPLORATION/SETTLEMENT
National Register nomination ›
Sources

Property data from the National Register of Historic Places, National Park Service (public domain).

Description adapted from Wikipedia under the Creative Commons Attribution-ShareAlike 4.0 International License.

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Everything a full report reveals about Fort Osage

This page lists Fort Osage. A full Aubrey report for an address near it pulls together this listing alongside battlefield records, land patents, and every other historical record within a chosen radius:

Overview
An interactive map of the location with historic sites, battles and Native heritage plotted, and its full story era by era.
The Land
The historic sites and place names around the location, and how this land was settled and used.
Geology
The bedrock beneath the site, its age and rock type, reaching back millions of years.
LiDAR Terrain
Laser-scanned terrain that reveals earthworks and old features hidden in the landscape.
Conflict & War
The battles, raids and skirmishes fought near here, across every era of American conflict.
The Civil War
The Civil War on this ground, 1861 to 1865: who held it, and the battles, camps and regiments nearby.
The Soldiers
The men who marched from here in the Civil War, named and traced where the record allows.
Native Heritage
The Native nations who held this land, mapped across time from before European contact to today.
Settlement
Who claimed and held this ground, from Indigenous homelands through the colonial powers to the United States.
The Community
How the town grew, who came, and what kind of place it became, traced through the census record.
Rivers & Rail
The rivers, canals and railroads that connected this place between 1830 and 1911.
Notable People
The people born, buried or genuinely tied to this exact place, with their stories.
Historical Maps
Historic maps of the location layered over how it looks today.
Finds & Access
Museum objects tied to the area, and the laws on searching, collecting and access here.
Literature
The old books, county histories and archives that mention this place, quoted with their sources.
Spotlight
A deep dive into the most remarkable, lesser-known history of the place, traced back to the record.
Points of Interest
The most significant historic sites and landmarks near the location, and why they matter.
Timeline
The whole story of the location told era by era, from first peoples to the present day.
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Nearby Historic Sites

Missouri City Savings Bank Building and Meeting Hall
Industrial
6.5 mi
Blue Mills
Listed
6.6 mi
New Hope Primitive Baptist Church
Early Republic
9 mi
Elms Hotel
Industrial
10.5 mi
Elms, The, Historic District
Listed
10.7 mi

Questions about this property

When was Fort Osage listed on the National Register?

Fort Osage was listed on the National Register of Historic Places on October 14, 1966.

What type of historic resource is Fort Osage?

Fort Osage is classified as a district in the National Register of Historic Places.

Is Fort Osage a National Historic Landmark?

Yes. Fort Osage has been designated a National Historic Landmark (NHL), the highest level of federal recognition for historic properties in the United States.

What is the period of significance for Fort Osage?

The period of significance for Fort Osage is recorded as the early_republic era, specifically around 1808.

Can I research the history near Fort Osage?

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