History Center is open. The Archives requires an appointment. Call 507-934-2160.


Monday | CLOSED
Tuesday | 10:00 AM-4:00 PM
Wednesday | 10:00 AM-4:00 PM
Thursday | 10:00 AM-4:00 PM
Friday | 10:00 AM-4:00 PM
Saturday | 10:00 AM-4:00 PM
Sunday | CLOSED


$6 | Adults
$5 | Seniors 65 years +
$4 | Child age 5-17
NCHS members visit for free.


Learners of all ages will explore the striking exhibits and landmarks along the Traverse des Sioux Historic Site.

Educators can learn more about field trips here.



NCHS welcomes all visitors. We recognize the diverse needs of our audience and strive to offer accessible programming to enable all visitors to explore our museum. You can learn more here.


The Treaty Site History Center is the headquarters of the Nicollet County Historical Society. A county museum and more, the site’s exhibits explore the fascinating history of Nicollet County and Minnesota’s territorial expansion.

During your visit to the Treaty Site History Center, you will explore the stories of Nicollet County’s first inhabitants- the Dakota people, explorers, traders, and settlers. The interaction between these people laid the historical groundwork for the signing of the 1851 Treaty of Traverse des Sioux, signed here in July of 1851, which ceded 24 million acres of Dakota land to the U.S. government and opened the land to new settlers and westward expansion.

Once settlers began pouring into Nicollet County, fur trading was replaced by farming and soon little villages became bustling towns with booming businesses. At the history center, visitors also learn about local agriculture, business, geology, and much more in its rotating exhibits featuring Nicollet County history.


1851 Treaty of Traverse des Sioux

The Treaty Site History Center’s permanent exhibit interprets the 1851 Treaty of Traverse des Sioux…


Explore Your History

Become a member of the Nicollet County Historical Society today!

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