| … |
Great Falls Hydroelectric Station |
| … |
Great Falls Hydroelectric Station |
| … |
Richmond Hydrostation |
| … |
Richmond Hydrostation |
| … |
Richmond Hydrostation |
| … |
Richmond Hydrostation |
| … |
Richmond Hydrostation |
| … |
Belknap Mill |
| … |
Georgetown Reservoir and Washington Aqueduct |
| … |
Belknap Mill |