Picture of the Day: Chimney Rock

Chimney Rock
Originally uploaded by Jvstin

Today’s picture is a well-hidden geological landmark near Hastings, Minnesota.

This is Chimney Rock, an erosional remnant of St. Peter sandstone. Chimney Rock is important geologically because it helps confirm that the last glaciation did not reach this far southeast–for surely it would have been toppled over like a bowling pin by an advancing glacier.