Relander Collection2018-01-202018-01-2019562002-850-210http://hdl.handle.net/20.500.11867/4440Sixteen Pen Stocks, 25 feet in diameter to direct water into turbines at Chief Joseph Dam on Columbia River.4.5 x 6.5 inchesPhotograph;IN COPYRIGHT This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).Dams--Chief Joseph;Dam construction;