ASOTIN — Five southeastern Washington counties are “pushing back” against an Idaho congressman’s proposal to breach the four dams on the lower Snake River in an effort to save endangered salmon.

At Monday’s commission meeting, Commissioner Brian Shinn presented a letter to U.S. Rep. Mike Simpson that was signed by commissioners from Asotin, Garfield, Columbia, Whitman and Walla Walla counties last week. County commissioners throughout this region have repeatedly come out in formal opposition to efforts to remove the dams, he said.