![Foulridge Wharf. Foulridge Wharf.](ll1006.jpg)
Foulridge Wharf.
![Foulridge Wharf. Foulridge Wharf.](ll135.jpg)
Foulridge Wharf.
![Foulridge Tunnel Foulridge Tunnel](ll137.jpg)
The eastern portal of the mile long Foulridge Tunnel.
![Foulridge Tunnel Foulridge Tunnel](ll1005.jpg)
Close-up of the eastern portal of Foulridge Tunnel. Entry to the tunnel is controlled by light signals, with each direction having a ten minute window each hour. The height gauge above the entrance is necessary to prevent boats over a certain height from hitting low points in the tunnel roof.
![Foulridge Lower Reservoir Foulridge Lower Reservoir](ll139.jpg)
Foulridge Lower Reservoir, built to supply the summit level of the canal, is almost directly above the canal tunnel.
![Slipper Hill Reservoir, Slipper Hill Reservoir,](ll140.jpg)
The smaller Slipper Hill Reservoir, close to the western tunnel portal.
![Foulridge Tunnel. Foulridge Tunnel.](ll1004.jpg)
The canal emerges from the western portal of Foulridge Tunnel.
![Foulridge Tunnel. Foulridge Tunnel.](ll1003.jpg)
The western portal of Foulridge Tunnel. The mile long tunnel is straight enough to be able to see a pinpoint of light at the other end when you are lined up with it.
![Foulridge Tunnel. Foulridge Tunnel.](ll1002.jpg)
The western portal of Foulridge Tunnel.
![Foulridge Tunnel. Foulridge Tunnel.](ll1001.jpg)
Another view of the western portal of Foulridge Tunnel. The mile long tunnel is straight enough to be able to see a pinpoint of light at the other end when you are lined up with it.