Parade on "The Trail," Lewis and Clark Centennial Exposition, 1905
Pack train packing up, Glacier Park, Montana, circa 1910
Pacific Court, Lewis and Clark Centennial Exposition, 1905
Pacific and Columbia Courts, Lewis and Clark Centennial Exposition, 1905
Oriental Palace, Lewis and Clark Centennial Exposition, 1905
Oregon Trunk Railway Tracks in the Deschutes River Canyon, Oregon
Oregon Trunk Railway Tracks in the Deschutes River Canyon, Oregon
Oregon Trunk Railway Tracks in the Deschutes River Canyon, Oregon
Oregon Trunk Railway on Deschutes River, 1911
Oregon Trunk Railroad Bridge over Crooked River Canyon
Oregon Trunk Rail Bridge across the Columbia River near Celilo Falls
Oregon Trunk Rail Bridge across the Columbia River near Celilo Falls
Oregon Trunk Bridge across Columbia River near Wishram, Washington, 1912
Oregon exhibits, Louisiana Purchase Exposition, 1904
Oregon exhibits on minerals and mining, Louisiana Purchase Exposition, 1904
Oregon exhibits at Louisiana Purchase Exposition, 1904
Oregon exhibit at Louisiana Purchase Exposition, with banner advertising, Lewis and Clark Centennial Exposition
Oregon displays at Louisiana Purchase Exposition, 1904
Oregon Building at Louisiana Purchase Exposition, 1904
Oregon building at Lewis and Clark Exposition, 1905
Orchards
Orchard and farmhouse
Oneonta Tunnel
Oneonta Gorge
Oneonta Falls
On the summit of Mt. Scott, 1903
Old bridge replaced by two span bridge with pier in center
Okanogan Valley irrigation
