National Register of Historic Places
Allegheny River Lock and Dam No. 9
Widnoon, Armstrong County, Pennsylvania
The record
- Listed
- April 21, 2000
- Type
- Structure
- Address
- Terminus of PA 1004, 0.2 mi. N of T488, Widnoon
- County
- Armstrong
- State
- Pennsylvania
- Period of significance
- 1900 to 1949
- Contributing resources
- 4 buildings, 3 structures
- Coordinates
- 40.95387, -79.54685
- Reference number
- 00000403
Slide toward Today to fade the historical sheet and see the modern map underneath.
The outline is the area recorded for this listing in National Park Service map data, drawn approximately.
David Rumsey Map Collection, Stanford LibrariesDavid Rumsey Map Collection, Stanford LibrariesUSGS Historical Topographic Map CollectionUSGS Historical Topographic Map CollectionDavid Rumsey Map Collection, Stanford Libraries