In 1806 the American Corps of Discovery under the leadership of Meriwether Lewis and William Clark stopped along the Columbia River at the present-day town of Washougal, Washington, to hunt until they had stocked enough meat to get them to the Nez Perce village farther upstream. This location today is marked by a small park which is connected to the town by a tunnel running under the highway. Shown below are some photographs of this park, the tunnel, and the art work within the tunnel.
As can be seen in the photos above, the beaver are active in this area.
The tunnel comes out in a very dangerous parking lot: one marked with the sign “Pendleton” (Indians who see this will understand) and “sale.”