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Portland General Electric Photograph Collection cellulose nitrate film With digital objects
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Oak Grove project, electrical bay of powerhouse showing conduits
Oak Grove project, electrical bay of powerhouse showing conduits
Oak Grove project, east along conduit line with Frog Lake in forground
Oak Grove project, east along conduit line with Frog Lake in forground
Oak grove project, earth and loose rock slide below south fork
Oak grove project, earth and loose rock slide below south fork
Oak Grove project, diamond drill at lower damsite intake
Oak Grove project, diamond drill at lower damsite intake
Oak Grove project, Davis Ranch sawmill
Oak Grove project, Davis Ranch sawmill
Oak Grove project, crib for west end of Roaring River bridge
Oak Grove project, crib for west end of Roaring River bridge
Oak Grove project, contractors and engineers
Oak Grove project, contractors and engineers
Oak Grove project, construction
Oak Grove project, construction
Oak Grove project, coffer dam at dam site
Oak Grove project, coffer dam at dam site
Oak Grove project, closing of gates at dam
Oak Grove project, closing of gates at dam
Oak Grove project, Clockhouse at Big Bottom
Oak Grove project, Clockhouse at Big Bottom
Oak Grove project, Clackamas River with cliffs and trees
Oak Grove project, Clackamas River with cliffs and trees
Oak Grove project, Clackamas River narrows
Oak Grove project, Clackamas River narrows
Oak Grove project, Clackamas River during flood
Oak Grove project, Clackamas River during flood
Oak Grove project, Clackamas River
Oak Grove project, Clackamas River
Oak Grove project, caterpillar pulling stumps on road at station A
Oak Grove project, caterpillar pulling stumps on road at station A
Oak Grove project, caterpillar leaving Davis Ranch with lumber and supplies for camp #11
Oak Grove project, caterpillar leaving Davis Ranch with lumber and supplies for camp #11
Oak Grove project, Canyon Creek bridge
Oak Grove project, Canyon Creek bridge
Oak Grove project, camp #9 cook house
Oak Grove project, camp #9 cook house
Oak Grove project, camp #6 looking southwest
Oak Grove project, camp #6 looking southwest
Oak Grove project, camp #5 ½ at Roaring River ranger station
Oak Grove project, camp #5 ½ at Roaring River ranger station
Oak Grove project, camp #3
Oak Grove project, camp #3
Oak Grove project, camp #2 near South fork
Oak Grove project, camp #2 near South fork
Oak Grove project, camp #2 near South Fork
Oak Grove project, camp #2 near South Fork
Oak Grove project, camp #2 near South fork
Oak Grove project, camp #2 near South fork
Oak Grove project, camp #12 west of Canyon Creek
Oak Grove project, camp #12 west of Canyon Creek
Oak Grove project, camp #10 at Davis Ranch
Oak Grove project, camp #10 at Davis Ranch
Oak Grove project, camp #10 at Davis Ranch
Oak Grove project, camp #10 at Davis Ranch
Results 169 to 196 of 275