Eagle Peak Trail

Home

Ice-Walled Lake Plain

Esker

History of Interstate Park

Eagle Peak Trail

River Bluff Trail

Potholes

Cascade Falls

The trail to Eagle Peak is situated on top of lava flows dipping toward Minnesota. These dipping flows have the same slope throughout the park (homocline). They are dipping toward Minnesota due to the Wisconsin side being uplifted, which is caused by the St. Croix horst that is being uplifted at a 5-10 degree angle. Eagle Peak Trail
Physical Weathering

The rocks along the trail are breaking apart due to physical weathering. Roots of plants along the trail are growing in the cracks in the rocks and breaking them apart. Water then gets into these cracks and the freezing of the water expands the crack and separates the rocks.

EAGLE PEAK Eagle Peak Summit
Eagle Peak was formed by lava flows that were cut off by valley walls due to coastal sea erosion. It is a very unique landscape because it is an exhumed landscape, and it is much older than the surrounding landscape.
Chattermarks Evidence of Eagle Peak's glaciation can be seen in the rocks at the summit and on the trail. Chattermarks (features formed by chipping or grinding of the underlying rock surface) and scraping can be seen on rocks at the top of the trail.
Microclimate features can be seen at the top. There is a lack of moisture, it is very warm and dry, and most of the water runs off and doesn't absorb. Because of this, Prickly Pear Cacti are able to grow. Prickly Pear Cacti
 

Created by: Jacqueline Chambers
chambeja@uwec.edu
December 21, 2006