Oregon City, 1845, ba014134.

Lithograph of Oregon City, early 1845. Oreg. Hist. Soc. Research Libr., ba014134

Early electric power facility on Willamette Falls, c. 1890.

Courtesy Oreg. Hist. Soc. Research Library, 006684

"Wheat Fleet" on the Willamette, 1899.

Courtesy Oregon Hist. Soc. Research Lib., 008725

Riverboat on the Willamette, Salem.

Courtesy Oregon Hist. Soc. Research Lib., 016G033, ba015732, bb019113, photo file 929g25

Steamboat passing under the Center Street Bridge over the Willamette, Salem.

Courtesy Oregon Hist. Soc. Research Lib., Cronise, photographer, ba015716, 72926, photo file 929g

Oswego Furnace, from Willamette, 440.

Oswego Furnace cupola from banks of Willamette River. Lake Oswego Public Libr. Local History Collec., 440

Willamette Falls and Canemah, c. 1900.

Courtesy Oreg. Hist. Soc. Research Library, 23628

Portland waterfront, west side of Willamette, c.1900.

Courtesy Oreg. Hist. Soc. Research Library, Gi4803

Paddlewheelers on Willamette River at Corvallis, c.1900.

Oreg. State Univ. Archives, Pernot Family Photo Collec., P220:01

Station B, Willamette Falls, c.1904.

Willamette River passing Corvallis (left), c. 1905.

Courtesy Oregon Hist. Soc. Research Lib., 016413

Champoeg Landing, 1908, OrHi 35288.

The steamship Pomona (r) at Champoeg landing, 1908. Oreg. Hist. Soc. Research Libr., OrHi 35288

Bridge crossing the Willamette River at Albany, 1910.

Willamette River, St. John's city dock, 1915.

Picnickers along Willamette River wearing Jantzen suits, c.1918.

Courtesy Oregon Hist. Soc. Research Lib., Orhi75624

Oregon City, bridge under construction, 1922, OrHi 094328.

Oregon City - West Linn bridge under construction, 1922. Oreg. Hist. Soc. Research Libr., OrHi 094328

Willamette R., salmon fishing on, OrHi 77507.

Salmon fishing at base of Willamette Falls, about 1920. Oreg. Hist. Soc. Research Libr., OrHi 77507

Willamette R., Portland Harbor sewage, 1930s, CN 014541.

Untreated sewer outfall under the Burnside Bridge, Portland, 1930s. Oreg. Hist. Soc. Research Libr., CN 014541

Crew Team on the Willamette River at Corvallis, 1935.

Crown Willamette Paper Co, 1947, CN 006061.

Crown Willamette Paper Company mill at West Linn, 1947. Oreg. Hist. Soc. Research Libr., CN 006061

Steamboats racing on the Willamette, 1937, OrHi 92053.

Steamers N. R. Lang and Annie Comings racing on the Willamette, 1937. Oreg. Hist. Soc. Research Libr., OrHi 92053

Industry on the Willamette, Portland, 1937.

Courtesy Oregon Hist. Soc. Research Lib., 006545

Butteville, 1938, OrHi 60020.

Butteville, Aug. 1938. Oreg. Hist. Soc. Research Libr., OrHi 60020

Log rafts on the Willamette River, 1947.

Courtesy Oreg. Hist. Soc. Research Lib., OrHi7887

An aerial view of Willamette Falls, with West Linn on the left and Oregon City on the right. The mill belonged to Crown Zellerbach..

Courtesy Oreg. Hist. Soc. Research Library, 66102

Paper mills on Willamette Falls near Oregon City and West Linn.

Courtesy Oregon Hist. Soc. Research Lib., 020907

Willamette Pulp and Power and Crown Paper.

Courtesy Oreg. Hist. Soc. Research Library, 005755

Dredge in Willamette River at Salem, 1940.

Army Corps of Engineers dredging Willamette River near Champoeg.

Courtesy Oregon Hist. Soc. Research Lib., 020184

Independence ferry, OrHi 89030.

Willamette River ferry at Independence, about 1920s. Oreg. Hist. Soc. Research Libr., OrHi 89030

Boone's Ferry on the Willamette River, 1950.

Eugene, Willamette River at, ba009417.

Willamette River at Eugene. Oreg. Hist. Soc. Research Libr., ba009417

Willamette R., dumping in, OrHi 55639.

Using auto bodies to prevent bank erosion along the Willamette River, Polk County. Oreg. Hist. Soc. Research Libr., OrHi 55639

Willamette River oxbow clogged with lilies and weeds, Aug. 1956.

Wilsonville Bridge, 1960.

Wilsonville Bridge across the Willamette River, 1960, with Mt. Hood in the distance. Oreg. State Archives, Oreg. Legis. Assy., Interim Committee on Public Lands, OLA0005

Waterfront Park, which replaced Harbor Drive, in Portland, 1970s.

Oreg. Hist. Soc. Research Libr., ba018326

SOLV, eastbank Willamette cleanup, 2008.

SOLV volunteers removing trash along Portland's Eastbank Willamette River Esplanade, Aug. 2008. Courtesy SOLV

Wheatland Ferry, docking, 2002.

Wheatland Ferry on the Willamette River, 2002. Photo Ted Dethlefs

Springwater Corridor, along Willamette R, 5, Aug 21 2011.

Willamette River from Springwater Corridor Trail, Portland, Aug. 2011. Photo James V. Hillegas