General industrial analysis of Washington, Oregon, Idaho, Montana.

Eitemau Tebyg

• Travels in Oregon, Washington and northern Idaho .
  gan: Chittenden, Newton H.
  Cyhoeddwyd: (1965)
• Miners and travelers' guide to Oregon, Washington, Idaho, Montana, Wyoming, and Colorado : via the Missouri and Columbia rivers ; accompanied by a general map of the mineral region of the northern sections of the Rocky mountains
  gan: Mullan, John, 1830-1909
  Cyhoeddwyd: (1965)
• Miners and travelers' guide to Oregon, Washington, Idaho, Montana, Wyoming, and Colorado via the Missouri and Columbia Rivers
  gan: Mullan, John, 1830-1909
  Cyhoeddwyd: (1865)
• The northwest coast, including Oregon, Washington and Idaho : a series of articles upon the N.P.R.R. in its relations to the basins of the Columbia and of Puget's Sound
  gan: Atkinson, G. H. (George Henry), 1819-1889
  Cyhoeddwyd: (1965)
• Montana-Idaho-Utah Baptist messenger