Shows an open framework side-wheel hydraulic placer gold dredge; gold miners feed gravel into a sluice next to the dredge, Clear Creek County, Colorado.
Dredges--Colorado--Clear Creek County--1870-1880.; Gold dredging--Colorado--Clear Creek County--1870-1880.; Clear Creek County (Colo.)--1870-1880.; Hydraulic mining--Colorado--Clear Creek County--1870-1880.; Mining--Colorado--Clear Creek...
View of Northern Pacific Railroad tracks, a trestle bridge, the ruins of a trestle, and a locomotive near Cascade Locks (Hood River County), Oregon; the Columbia River, forest, and mountains are in the distance.
View of frame buildings, a boat house and a wooden ramp beside the Columbia River near The Cascades, whitewater rapids in Multnomah County, Oregon. Shows a trestle near buildings and dense trees on mountains nearby.
Columbia River--1860-1870.; Multnomah County (Or.)--1860-1870.; Buildings--Oregon--Multnomah County--1860-1870.; Rivers--Oregon--Multnomah County--1860-1870.
View of the Columbia River at The Dalles (later Dalles Dam), whitewater rapids in Wasco County, Oregon or Klickitat County, Washington, near what is identified as "Sun Set Hill." Shows frame buildings, sparse trees and river inlets in the wide...
Columbia River--1860-1870.; Dalles, The (Or. and Wash. : Rapids)--1860-1870.; Rivers--1860-1870.