Near Lake City in Marshall County, South Dakota — The American Midwest (Upper Plains)
Bulldozing the Landscape
About, 20,000 years ago, a series of glaciers scoured and scraped their way across South Dakota, creating in their wake the Coteau des Prairies. As the glaciers retreated, they left a deposit known as glacial moraine - consisting of soil and rocky material - that created the Coteau des Prairie. The Coteau is a wedge-shaped area stretching 250 miles from the North Dakota border to Sioux Falls, SD.
In several places, large chunks of ice broke away from the glaciers. These ice chunks caused the land to slump, forming basins to catch the water as the ice melted. These areas formed the glacial lakes seen throughout the Coteau des Prairie.
Another important geological feature in the region is the Northern (or Laurentian) Divide, which runs within a few miles of Fort Sisseton. Water that falls on the north side of the divide flows into the Hudson Bay and water that falls on the south side of divide flows into the Gulf of Mexico.
Location. 45° 39.33′ N, 97° 32.028′ W. Marker is near Lake City, South Dakota, in Marshall County. Marker can be reached from 434th Ave. near 118th Street. Touch for map. This marker is located 1/4 mile from the main post near the water. Marker is at or near this postal address: 11907 434th Ave,, Lake City SD 57247, United States of America.
Other nearby markers. Andrew Jackson Fisk Historic Trail (approx. 0.2 miles away); Magazine (approx. 0.2 miles away); Guard House (approx. 0.2 miles away); Adjutants Office (approx. 0.2 miles away); Officers' Quarters (approx. 0.2 miles away); Commanding Officer's Quarters (approx. 0.2 miles away); Quartermaster and Commissary Building (approx. 0.2 miles away); The Laundress Quarters (approx. 0.2 miles away). Touch for a list and map of all markers in Lake City.
Also see . . . . (Submitted on February 4, 2017, by Ruth VanSteenwyk of Aberdeen, South Dakota.)
Categories. • Natural Features •
Credits. This page was last revised on March 7, 2017. This page originally submitted on February 4, 2017, by Ruth VanSteenwyk of Aberdeen, South Dakota. This page has been viewed 119 times since then and 17 times this year. Last updated on March 4, 2017, by Ruth VanSteenwyk of Aberdeen, South Dakota. Photos: 1, 2, 3. submitted on February 4, 2017, by Ruth VanSteenwyk of Aberdeen, South Dakota. • Bill Pfingsten was the editor who published this page.