1961 Press Photo Visitors watch the fish ladders at Bonneville Dam, Oregon.

The fish ladders at Bonneville Dam, Oregon are one of the wonders of this hydro-electric giant of the Columbia River .This scene shows some visitors looking at the fish ladders which carry fish around the spillways and powerhouse portions of the huge concrete span across the river.

Photo is dated 1961.

Photo measures 10 x 8.25 inches.