Lemay in St. Louis County, Missouri — The American Midwest (Upper Plains)

Jefferson Barracks

United States Military Reservation

— 1826 - 1946 —

Jefferson Barracks Marker image. Click for full size.

Photographed by Thomas Smith, April 17, 2021

1. Jefferson Barracks Marker

Inscription. As the United States expanded westward, this post served as the center for all military activities on the frontier. In the interest of preserving this Post and it's history for all time, St. Louis County has maintained a portion of Jefferson Barracks as an Historical Park since 1950.

Topics. This historical marker is listed in these topic lists: Forts and Castles • Parks & Recreational Areas. A significant historical year for this entry is 1950.

Location. 38° 30.575′ N, 90° 16.535′ W. Marker is in Lemay, Missouri, in St. Louis County. It is on Grant Road 0.2 miles south of South River Road, on the right when traveling north. Touch for map. Marker is at or near this postal address: 140 Grant Rd, Saint Louis MO 63125, United States of America. Touch for directions.

Regionally, this marker is in Greater St. Louis.

It is also in the American Midwest,

in the Lewis & Clark Corridor,

in the Corn Belt,

and in the Great River Road Region.

Globally, it is in North America,

the Western Hemisphere,

the Western World,

and the Anglosphere.

Historically, it finds itself in what was once the Viceroyalty of New France,

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the territory of the Mississippian Culture,

the Louisiana Purchase,

and the Antebellum South.

Other nearby markers. At least 8 other markers are within walking distance of this marker: This Gate is made of four United States Army Cannons (about 300 feet away, measured in a direct line); Jefferson Barracks Historic Site - Parade Ground (approx. 0.3 miles away); Jefferson Barracks Historic Site (approx. 0.3 miles away); The Historic Parade Ground (approx. 0.3 miles away); Site of First Parachute Jump (approx. 0.3 miles away); WWII M4A3E8 Sherman Tank (approx. 0.4 miles away); World War II Memorial (approx. 0.4 miles away); "The Tower" (approx. 0.4 miles away). Touch for a list and map of all markers in Lemay.

Photographed by Thomas Smith, April 17, 2021

2. Jefferson Barracks Marker

Jefferson Barracks Marker - United States Military Reservation marker image. Click for full size.

Photographed by Garrett Koch, May 14, 2025

3. Jefferson Barracks Marker - United States Military Reservation marker

Credits. This page was last revised on July 17, 2025. It was originally submitted on April 17, 2021, by Thomas Smith of Waterloo, Ill. This page has been viewed 405 times since then and 43 times this year. Photos: 1, 2. submitted on April 19, 2021, by Thomas Smith of Waterloo, Ill. 3. submitted on July 16, 2025, by Garrett Koch of Saint Louis, Missouri. • Devry Becker Jones was the editor who published this page.