Which canal is on the western part of the United States, the Celilo Canal or Pennsylvania and Ohio Canal?
Celilo Canal: Celilo Canal was a canal connecting two points of the Columbia River between the states of Oregon and Washington, U.S. just east of The Dalles. Pennsylvania and Ohio Canal: The Pennsylvania and Ohio Canal, also known as the P & O Canal, the Cross Cut Canal and the Mahoning Canal was a shipping canal which operated from 1840 until 1877 (though the canal was completely abandoned by 1872).
Celilo Canal