• Indiana Dunes National Lakeshore

    Indiana Dunes

    National Lakeshore Indiana

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  • Mount Baldy Area Temporarily Closed

    The Mount Baldy area is temporarily closed due to hazardous conditions until further notice.

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Did You Know?

a sea of tall grasses and catails in a marsh setting and trees in the background

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.