FY 2010 - 15,177
FY = Fiscal Year which runs from October 1 (of previous year) to September 30 (of year listed)
Did You Know?
Cowles Bog is not a true bog but rather a fen because it has an underground water source. This water source has contact with limestone bedrock, making the fen’s water slightly alkaline. Indiana Dunes National Lakeshore is restoring a portion of this fen.