Melrose, Illinois, United States

Lock No. 21, Melrose, IL, USA

Natural • Recreation

Visitor Center, Melrose, IL, USA

Government

Dam No. 21, Melrose, IL, USA

Mississippi River, Melrose, IL, USA

Auxiliary Lock, Melrose, IL, USA

Guard Wall, Melrose, IL, USA

Intermediate Wall, Melrose, IL, USA

Lock and Dam 21, Melrose, IL, USA

Central Control Station, Melrose, IL, USA

Scooter Shed, Melrose, IL, USA

Esplanade, Melrose, IL, USA

Control Stand Shelter, Melrose, IL, USA

Smoking Shelter, Melrose, IL, USA

Haulage Unter Shelter, Melrose, IL, USA

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

Workshop, Melrose, IL, USA

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

Ranger's Storage, Melrose, IL, USA

Upstream Guide Wall, Melrose, IL, USA

Lockman's Shelter, Melrose, IL, USA