USA - South Dakota - Sioux Falls

Scenic illustration of Sioux Falls, South Dakota.

Sent by Jason from Texas, USA.

Sioux Falls is the largest city in the U.S. state of South Dakota. Founded in 1856, the city was abandoned, sacked, resettled and later grew to become a city with a 2020 Census population of 192,517 people.

The history of Sioux Falls revolves around the cascades of the Big Sioux River. The falls were created about 14,000 years ago when the last glacial ice sheet redirected the flow of the river into the large looping bends of its present course. Fueled by water from the melting ice, the river exposed the underlying Sioux quartzite bedrock, the hard pinkish stone of the falls. The quartzite itself is about a billion and a half years old. It began as sediments deposited on the bottom of an ancient, shallow sea (read more).