New Boston, Illinois, United States

Heiser Slough, New Boston, IL, USA

Natural • Recreation

Half Moon Slough, New Boston, IL, USA

Natural • Recreation

Port Louisa National Wildlife Refuge - Big Timber Division, Louisa County, IA, USA

Recreation

Pool 17, Louisa County, IA, USA

Upper Approach Dike, New Boston, IL, USA

Lock Canal 17, New Boston, IL, USA

Lockman's Shelter, New Boston, IL, USA

Upstream Guide Wall, New Boston, IL, USA

Haulage Unit Shelter, New Boston, IL, USA

Lock & Dam No. 17, New Boston, IL, USA

Ives Ditch, New Boston, IL, USA

Control Stand Shelter, New Boston, IL, USA

Electrician's Office, New Boston, IL, USA

Lock and Dam 17, New Boston, IL, USA

Lock & Dam No. 17 Historic District, New Boston, IL, USA

Utility Building, New Boston, IL, USA

Central Control Station, New Boston, IL, USA

Auxiliary Lock, New Boston, IL, USA

Workshop, New Boston, IL, USA

Esplanade, New Boston, IL, USA