U.S. National Archives:
Construction of Expo 74 Site on the Columbia River 05/1973
U.S. National Archives:
Shipping Terminal Area on the Willamette River 06/1973
U.S. National Archives:
Construction on the Site of Expo 74 05/1973
U.S. National Archives:
Rivergate Industrial Complex and Terminal Area on the Willamette River 06/1973
U.S. National Archives:
Fruit Orchards near Chelan 05/1973
U.S. National Archives:
Site of Expo 74 on the Columbia River. Expo's Theme Will Be Environment 05/1973
U.S. National Archives:
Site of Expo 74 on the Columbia River. Expo's Theme Will Be Environment 05/1973
U.S. National Archives:
Shipping Terminal Area on the Willamette River 06/1973
U.S. National Archives:
Industrial Plant on the Upper Columbia River 05/1973
U.S. National Archives:
Construction at Site of Expo 74 on the Columbia River 05/1973
U.S. National Archives:
Part of the Rivergate Industrial Complex on the Willamette River 06/1973
U.S. National Archives:
Crescent Bar Recreational Area at Trinidad, on the Columbia River 05/1973
U.S. National Archives:
Grand Coulee Dam 05/1973
U.S. National Archives:
Log Raft on the Willamette River at Oregon City 04/1973
U.S. National Archives:
Shipping Terminal Area on the Willamette River 06/1973
U.S. National Archives:
Part of Crescent Bar Recreational Area at Trinidad, on the Columbia River 05/1973
U.S. National Archives:
Chief Joseph Dam on the Upper Columbia River 05/1973
U.S. National Archives:
Chief Joseph Dam 06/1973
U.S. National Archives:
The Dalles Dam on the Columbia River. In Background Is Mt Hood Which, at 11,235 Ft. Elevation, Is the Highest Point in Oregon 06/1973
U.S. National Archives:
The Columbia River Gorge 05/1973
U.S. National Archives:
Residential Area 06/1973
U.S. National Archives:
Rock Island Dam Is the Oldest Dam on the Columbia River 06/1973
U.S. National Archives:
The John Day Dam with Martin Marietta Aluminum Plant in Background 06/1973
U.S. National Archives:
Threshing at the Pierson Park Airfield, Goodyear Blimp in Background 06/1973
U.S. National Archives:
Portland's Splendid Port Is Deep Enough for the Largest Ships Seen Here Is a Consignment of New Cars at Hayden Island in North Portland Harbor 06/1973
U.S. National Archives:
The Dalles Dam on the Columbia River. In Background Is Mt Hood Which, at 11,235 Ft. Elevation, Is the Highest Point in Oregon 06/1973
U.S. National Archives:
The Spillway at Priest Rapods Dam 06/1973
U.S. National Archives:
Fishermen on a Commercial Log Raft on the Willamette River 05/1973
U.S. National Archives:
The Hayden Island Complex on the Columbia River Includes Shopping Centers, Industry, Houseboats and Condominiums. The Interstate Bridge Connects Vancouver, Wa., and Portland, Or 06/1973
U.S. National Archives:
Grand Coulee Dam 06/1973
