Taylors Falls in Chisago County, Minnesota — The American Midwest (Upper Plains)
Geology of the Taylors Falls Region
About 520 million years ago in the Lake Cambrian period, the North American continent was positioned with Minnesota near the equator. Shallow seas covered the region, into which great thicknesses of mainly quartz sand were deposited. These deposits are now the sandstone bluffs along this river valley and the rock faces exposed on the highway road cuts south of this marker. Although most of the region then lay flat, the basalts in the Taylor Falls area
The most recent geological event recorded here occurred about 12,000 years ago during the end of the Ice Age of the last two million years. As the last of the glaciers melted and receded to the north, tremendous quantities of sediment-laden glacial meltwaters were channeled into the St. Croix River valley. Here at Taylor Falls, a colossal torrent of abrasive currents carved down through the Cambrian sandstones and deep into the rift basalts now seen on the valley floor. The spectacular potholes in the lava rock, found in Interstate Park about 0.4 kilometers north of this site, attest to the high velocity of the raging glacial waters that carved the St. Croix River gorge.
Erected by the Geological Society of Minnesota in partnership with the Minnesota Department of Transportation and the Minnesota Geological Survey 1998
Erected 1998 by the Geological Society of Minnesota in partnership with the Minnesota Department of Transportation and the Minnesota Geological Survey.
Topics. This historical marker is listed in this topic list: Natural Features. A significant historical year for this entry is 1998.
Location. 45° 23.866′ N, 92° 39.315′ W. Marker is in Taylors Falls, Minnesota, in Chisago County. Marker is on Saint Croix Touch for map. Marker is in this post office area: Taylors Falls MN 55084, United States of America. Touch for directions.
Other nearby markers. At least 8 other markers are within 2 miles of this marker, measured as the crow flies. Taylors Falls United Methodist Church (approx. 0.2 miles away); Folsom House (approx. 0.2 miles away); Glacial Potholes (approx. 0.2 miles away); Town House School (approx. ¼ mile away); Chisago Hotel (approx. 0.3 miles away); Interstate Park Centennial (approx. half a mile away in Wisconsin); Interstate Park (approx. 0.6 miles away in Wisconsin); Where Are The Falls of the St. Croix? (approx. 1.1 miles away in Wisconsin). Touch for a list and map of all markers in Taylors Falls.
Also see . . .
1. Minnesota Department of Natural Resources. Geology of Interstate Park; The St. Croix Dalles, home of the World's Deepest Potholes. (Submitted on August 8, 2011.)
2. Minnesota Department of Natural Resources. Interstate State Park. (Submitted on August 8, 2011.)
Credits. This page was last revised on June 16, 2016. It was originally submitted on August 8, 2011, by Keith L of Wisconsin Rapids, Wisconsin. This page has been viewed 876 times since then and 11 times this year. Photos: 1, 2, 3, 4, 5, 6. submitted on August 8, 2011, by Keith L of Wisconsin Rapids, Wisconsin.