"Trojan Nuclear Power Plant, Rainier, Oregon. Located on the banks of the beautiful Columbia River, separating Washington and Oregon, is this 499 foot cooling tower, landmark of this area. Trojan Nuclear Power Plant produces 1,000,000 kilowatts and is owned by Portland General Electric, Eugene Water & Electric Board, and Pacific Power & Light."
1970s.
Craig Bartlett had a great comic story using this plant as a setting in Tales From the Steam Tunnels.
The plant was decommissioned in 1993. The tower was blown up real good in 2006.
Although Rainier, Oregon is close to the site, it would be more accurate to say this postcard photo was taken near Prescott, Oregon, which where I hid Morty Comix # 2562 last April.