Oneonta Tunnel

Historical marker location:

Cascade Locks, Oregon

( Marker is on Historic Columbia River Highway (U.S. 30) 1.8 miles west of Interstate 84, on the left when traveling west.)

Revisit the Past.

The Willamette Meteorite, the largest meteorite found in North America and the sixth largest in the world, was discovered in Oregon in 1902. It weighs over 15.5 tons and is estimated to be over 10,000 years old.