- E7
- E5
- E6
- E4
- Estacada 3.
- Pennsylvania Water Power Company History. 4.
- WE LOVE HYDRO HISTORY. 5.
- Estacada 2
- Electricity in Northwest Washington. 6.
- Electricity in Northwest Washington. 2.
- Pennsylvania Water Power Company History. 6.
- Electricity in Northwest Washington. 5.
- N7
- Electricity in Northwest Washington. 4.
- Pennsylvania Water Power Company History. 3.