Lower Sioux Agency

Lower Sioux Agency
Minnesota State Register of Historic Places
The Lower Sioux Agency warehouse from the northwest
Location32469 County Hwy. 2, Sherman Township, Redwood County, Minnesota, USA
Nearest cityMorton, Minnesota
Coordinates44°31′34″N 94°57′28″W / 44.52611°N 94.95778°W / 44.52611; -94.95778
Area122.86 acres (49.72 ha)
Built1853–1862
NRHP reference No.70000308
Added to NRHP1970-09-22

The Lower Sioux Agency, or Redwood Agency, was the federal administrative center for the Lower Sioux Indian Reservation in what became Redwood County, Minnesota, United States. It was the site of the Battle of Lower Sioux Agency on August 18, 1862, the first organized battle of the Dakota War of 1862.

Today it is a historic site managed by the Lower Sioux Community in partnership with the Minnesota Historical Society. In February 2021, ownership of half of the site was transferred from the historical society to the Lower Sioux Community. The site contains an interpretive center, self-guided trails, and a restored 1861 stone warehouse that is listed on the National Register of Historic Places.