Near Granite Falls in Chippewa County, Minnesota — The American Midwest (Upper Plains)
A Witness to Time
At the close of the last ice age, 12,000 years ago, mile-high glaciers melted, forming Glacial Lake Agassiz to the north of here. The outlet for the lake was Glacial Lake Warren whose torrent carved the large valley you see. The abrasive current streamlined the rock outcroppings which lay in its way. The roar of rushing water and tumbling boulders would have been heard for miles. Today, the gentle Minnesota River creates barely a whisper as it flows almost unnoticed in the shadow of its prehistoric glory.
Across the river, spearheads, knives, hide-scrapers, and other stone tools have been discovered in association with extinct forms of bison. These bison-butchering sites have dated human occupation of the valley to 6,400 years ago.
Location. 44° 47.845′ N, 95° 30.446′ W. Marker is near Granite Falls, Minnesota, in Chippewa County. Marker is on U.S. 212 2.1 miles east of State Highway 67, on the right when traveling east. Touch for map. Marker is at a highway pull-off. Marker is in this post office area: Granite Falls MN 56241, United States of America.
Other nearby markers. At least 8 other markers are within 12 miles of this marker, measured as the crow flies. Henry Hill 1829-1879 (approx. 1.9 miles away); World's Oldest Rock (approx. 1.9 miles away); Ancient Exposed Rocks (approx. 1.9 miles away); School Bell (approx. 1.9 miles away); The Wood Lake Battle (approx. 7½ miles away); Wood Lake Battlefield State Monument (approx. 7½ miles away); The Hanley Falls Railroad "Y" (approx. 9.1 miles away); Farther and Gay Castle (approx. 11½ miles away). Touch for a list and map of all markers in Granite Falls.
Also see . . .
1. Minnesota River Valley Formation. "The torrent of water that flowed out of Lake Agassiz carved out the large Minnesota River Valley that spans up to five miles across in some places..." (Submitted on October 5, 2013.)
2. Glacial River Warren. Wikipedia entry. (Submitted on October 5, 2013.)
Categories. • Waterways & Vessels •
Credits. This page was last revised on June 16, 2016. This page originally submitted on October 5, 2013, by Keith L of Wisconsin Rapids, Wisconsin. This page has been viewed 634 times since then and 41 times this year. Photos: 1, 2, 3, 4, 5. submitted on October 5, 2013, by Keith L of Wisconsin Rapids, Wisconsin.