Spokane Falls in Spokane, Washington.

Bridge and Spokane Falls in Spokane, Washington.

Spokane Falls in Spokane, Washington.

Cataract Falls on Mill Creek, the largest waterfall in Cloverdale, Indiana.

Cataract Falls on Mill Creek in Lieber State Recreation Area in Indiana.

Cataract Falls on Mill Creek in Lieber State Recreation Area in Indiana.

Cataract Falls on Mill Creek in Lieber State Recreation Area in Indiana.

Cataract River, Clifty Falls near Madison, Indiana.

Cataract Falls, Eel River, Indiana.

Rock wall at Clifty Falls near Madison, Indiana.

Lower Falls of the Yellowstone River, Wyoming.

Cataract Falls on Mill Creek in Lieber State Recreation Area in Indiana. Cataract Falls consists of two sets of falls, the larger dropping 20 feet and the smaller dropping 18 feet.