Map showing position of available aerial photographs of the Bonneville Dam area taken in 1939 as part of the OCSW railroad survey. Contemporary terrain, major roads, populated places, and the Columbia River are shown as points of comparison.
Aerial photograph of Boardman in Morrow County, Oregon taken by the United States Geological Survey, Earth Resources Observation and Science (EROS) Center on July 10, 1996.
Aerial photograph of the Dalles Dam in the Columbia River taken by the United States Geological Survey, Earth Resources Observation and Science (EROS) Center on July 16, 1996.
