Historical Marker
Rock Fort Camp
Historical marker location:
401 East 2nd Street, The Dalles, Oregon
( Marker is on East 2nd Street (Business U.S. 30) near Federal Street, on the right when traveling west.)
Marker installed: 1993
October 25, 1805.
The Hells Canyon National Recreation Area, located in northeastern Oregon, is the deepest river gorge in North America. The canyon was carved by the Snake River and is over 7,900 feet deep in some places.