Menu Expand Menu Close
Back to Top
Filter Search Expand Close Filter
Search Expand Search Close

Search Constraints

Start Over
You searched for: All Subjects Locks (Hydraulic engineering)--Allegheny River (Pa. and N.Y.)--Maps. Remove constraint All Subjects: Locks (Hydraulic engineering)--Allegheny River (Pa. and N.Y.)--Maps. Subject Topical Locks (Hydraulic engineering)--Monongahela River (W. Va. and Pa.)--Maps. Remove constraint Subject Topical: Locks (Hydraulic engineering)--Monongahela River (W. Va. and Pa.)--Maps.
1 entry found
Number of results to display per page

Search Results

1. Navigation on our three rivers.

Creator Corporate Names:
United States. Army. Corps of Engineers. Pittsburgh District.
Title:
Navigation on our three rivers.
Call Number:
P21113
Date:
undated
Description:

Brochure.

Subject Topical:
Locks (Hydraulic engineering)--Allegheny River (Pa. and N.Y.)--Maps., Locks (Hydraulic engineering)--Monongahela River (W. Va. and Pa.)--Maps., Dams--Pennsylvania--Pittsburgh Region--Maps., Dams--Monongahela River (W. Va. and Pa.)--Maps., Locks (Hydraulic engineering)--Pennsylvania--Pittsburgh Region--Maps., Dams--Ohio River--Maps., Locks (Hydraulic engineering)--Pennsylvania--Pittsburgh Region--Pictorial works., Locks (Hydraulic engineering)--Ohio River--Maps., Dams--Allegheny River (Pa. and N.Y.)--Maps., Boats and boating--Pennsylvania--Pittsburgh Region--Maps.
All:
Locks (Hydraulic engineering)--Allegheny River (Pa. and N.Y.)--Maps., Locks (Hydraulic engineering)--Monongahela River (W. Va. and Pa.)--Maps., Dams--Pennsylvania--Pittsburgh Region--Maps., Dams--Monongahela River (W. Va. and Pa.)--Maps., Locks (Hydraulic engineering)--Pennsylvania--Pittsburgh Region--Maps., Dams--Ohio River--Maps., Locks (Hydraulic engineering)--Pennsylvania--Pittsburgh Region--Pictorial works., Locks (Hydraulic engineering)--Ohio River--Maps., Dams--Allegheny River (Pa. and N.Y.)--Maps., Boats and boating--Pennsylvania--Pittsburgh Region--Maps.