Birch Cooley Battle Field State Memorial Park
🌤 Weather at Birch Cooley Battle Field State Memorial Park by season
| Spring | Summer | Fall | Winter |
|---|---|---|---|
| 22–70 °F | 58–84 °F | 24–74 °F | 6–28 °F |
Each range runs from the coldest monthly average low to the warmest monthly average high in that season (1991-2020 climate normals), measured at Redwood Falls Municipal Airport, 1 mi away, elevation 1,021 ft. Conditions at the park can differ from the station, especially where elevation differs — check a forecast before you go.
🏆 U.S.-Dakota War Memorial — Site of the decisive 1862 Battle of Birch Coulee — deadliest engagement in the U.S.-Dakota War
Birch Cooley Battlefield State Memorial Park preserves the site of the Battle of Birch Coulee (September 2, 1862) — the deadliest single engagement of the U.S.-Dakota War. A detachment of 150 soldiers and civilians was surrounded and besieged by Dakota warriors for 31 hours, suffering 20 killed and 60 wounded before relief arrived. The 15-acre memorial includes a granite monument, interpretive panels, and the preserved battlefield terrain. The U.S.-Dakota War was the largest mass execution in American history — 38 Dakota men were hanged in Mankato on December 26, 1862.
Visitor Information
| Detail | Information |
|---|---|
| Location | Near Morton, Renville County, MN |
| Size | 15 acres |
| Entry Fee | Free |
| Battle | September 2, 1862 (31-hour siege) |
| Significance | Deadliest battle of U.S.-Dakota War |
Frequently Asked Questions
What was the U.S.-Dakota War?
In August 1862, starving Dakota people in Minnesota rose up against broken treaty promises. The six-week conflict killed over 600 settlers and soldiers, and an unknown number of Dakota. It ended with the largest mass execution in U.S. history and the forced exile of Dakota people from Minnesota.
About Birch Cooley
Birch Cooley Battle Field State Memorial Park in Renville County commemorates the September 2, 1862 Battle of Birch Coulee — the bloodiest engagement of the U.S.-Dakota War of 1862. A company of burial detail soldiers was ambushed by Dakota warriors in a devastating 36-hour siege. The conflict — triggered by broken treaties, starvation, and corruption — remains one of the most painful chapters in Minnesota history.
Things to Do
Visiting the battlefield monument and interpretive markers, reflecting on the U.S.-Dakota War and its devastating consequences for the Dakota people, and walking the quiet prairie landscape where the battle occurred.
Make it a road trip: Pair a visit with Fort Ridgely State Park (within about an hour’s drive) or Upper Sioux Agency State Park (within about an hour’s drive).
🪦 Visit Birch Cooley Battlefield
1862 U.S.-Dakota War — 31-hour siege site, Minnesota’s darkest chapter.
Wildlife & Nature
Birch Coulee Battlefield — preserves the site of the 1862 Dakota War battle, one of the bloodiest engagements of the conflict. The park’s restored prairie supports meadowlarks, bobolinks, and dickcissel. Red-tailed hawks hunt the grassland. White-tailed deer browse the edges.
Nearby Attractions
Morton — adjacent. Lower Sioux Agency — 5 miles north — has the historic site and interpretive center. Redwood Falls — 15 miles north. New Ulm — 20 miles east — has the Hermann Monument.
🐾 Dogs & Pets at Birch Cooley Battle Field State Memorial Park
- Pets allowed? statewide rule
- Pets are welcome in Minnesota state parks and recreation areas as long as they are leashed and personally attended at all times.
- Leash rule statewide rule
- Leash six feet or shorter (or portable enclosure) required at all times.
- Beaches & swim areas statewide rule
- Only service animals are allowed in beach areas — pets are prohibited on swim beaches statewide.
- Cabins & lodging statewide rule
- Only service animals are allowed in state park lodging, camper cabins, yurts and tipis — no pet-friendly cabin program.
- Statewide exceptions statewide rule
- Emotional support/therapy animals do not qualify as service animals and are prohibited from park buildings.
Are dogs allowed at Birch Cooley Battle Field State Memorial Park?
Pets are welcome in Minnesota state parks and recreation areas as long as they are leashed and personally attended at all times. Individual parks can post stricter rules — check signage on arrival.
Rules verified July 2026 via dnr.state.mn.us. More: Minnesota state parks guide · Dog rules in all 50 states compared
