Click Relander2017-11-052017-11-05196019602002-850-239http://hdl.handle.net/20.500.11867/1997An aerial view shows the Oregon shores of the confluence of the John Day and Columbia Rivers. Sand for conrete going to John Day Dam will come from pit in lower right corner.7.5x 8 inchesPhotographIN 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--John Day;Dams; Hydroelectric power plants--Columbia River Basin;