Fabius, Missouri, United States

Lock No. 21, Melrose, IL, USA

Natural • Recreation

Visitor Center, Melrose, IL, USA

Government

Submersible Earth Dike, Fabius, MO, USA

Dam No. 21, Melrose, IL, USA

Mississippi River, Melrose, IL, USA

Guard Wall, Melrose, IL, USA

Auxiliary Lock, Melrose, IL, USA

Intermediate Wall, Melrose, IL, USA

Lock and Dam 21, Melrose, IL, USA

Central Control Station, Melrose, IL, USA

Control Stand Shelter, Melrose, IL, USA

Scooter Shed, Melrose, IL, USA

Esplanade, Melrose, IL, USA

Haulage Unter Shelter, Melrose, IL, USA

Lock Canal 21, Melrose, IL, USA

Smoking Shelter, Melrose, IL, USA

Lock & Dam No. 21, Melrose, IL, USA

Lock & Dam 21 Recreation Area, Melrose, IL, USA

Upstream Guide Wall, Melrose, IL, USA

Lockman's Shelter, Melrose, IL, USA