Historic Columbia River Highway
Oneonta Gorge, OR

Oneonta Gorge is a botanical treasure; over 50 species of plants reside in this perpetually-cool and moist shelter.

This is where the byway deviates from its original path (as established by the road's engineer, Samuel C. Lancaster, in 1914.) The original, 80-foot reinforced-concrete span bridge was bypassed in 1948. The 125-foot Oneonta Tunnel (too tight for modern trucks) was abandoned and filled with rubble.