Shepperd's Dell is a small canyon in the Columbia River Gorge in Oregon, located at which is less than one-third mile (500 m) southeast of Rooster Rock State Park.
The Historic Columbia River Highway runs over the dell on a bridge that was the answer to one of the engineering challenges of the highway's construction. The dell was carved by a creek that includes two fairly substantial tumbling waterfalls. Due to the topography of the area, it is difficult to photograph the falls. As such, the bridge is what is normally pictured, and thus is arguably better known than the dell itself.
The spelling of the dell's name tends to vary depending on the source. The official Oregon State Park site [1] spells it with the apostrophe, however the GNIS entry [2] omits the apostrophe.