The Marmes Rockshelter is an archaeological site first excavated in 1962, near Lyons Ferry Park and the confluence of the Snake and Palouse Rivers, in Franklin County, southeastern Washington. This ro
Unknown officials in the Marmes Rock Shelter before it was submerged
The creation of the Lower Monumental Dam raised the level of the Palouse River high enough to submerge the Marmes site completely under water.