Eratic
 
 
 
 
 
 
 
 
 
 
 
Continental Glaciers Valley
Glaciers
Valley Glacier
Erosion
Valley Glacier
Erosion Features
Arete U-Shaped Valleys Eratic Cirque
Horn Moraine

Hanging
Valley

Staircase
Lakes
Eratics are boulders that the glacier has carried along with it as it moved. Some eratics fall onto a glacier during an avalanche and ride on the top of the glacier until it melts. When the glacier melts it leaves the boulder far away from where it first fell. Sometimes smaller boulders that are already on the ground when the glacier passes, and the glacier just picks it up and moves it too.
NOAA image
 
National Park Service image National Park Service image
 

 

 
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