West of Stevens County, bordering northeastern South Dakota, is Big Stone County (pop. 5,269).
Big Stone Lake, 26 miles long, is between Big Stone County and South Dakota. The lake is the source of the Minnesota River, which flows 332 miles southeast to the Mississippi River.
The county seat of Big Stone County is Ortonville, pop. 1,916.
The Big Stone County Courthouse was built in 1902.
Ortonville’s Public Library, built in 1915, is apparently the only Carnegie Library in Minnesota that was built in the Mission Revival style.
The town of Beardsley (pop. 233) shares with Moorhead the record for the hottest temperature in Minnesota’s history – 114 degrees on July 29, 1917.
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