these sites I used quite a lot for background material
[links good September 2013]
- Center for Columbia River History
Nice spot and well done, with lots of historical background.
- Columbia Basin Fish and Wildlife Authority
Nice spot to learn about the geography of the rivers entering the Columbia.
National Register of Historic Places
A good place for interesting locations along the Columbia River.
- NOAA, Office of Coast Survey
Old historic charts of the Columbia River, plus the early versions of their "Coast Pilot".
- University of Washington Digital Collections
Special Collections, Research, Exhibits, etc.
- U.S. Army Corps of Engineers
Lots of good information on the dams along the Columbia River, plus local parks near the dams for both Washington and Oregon.
- U.S. Bureau of Land Management, General Land Office Records (GLO)
Homesteads, Oregon-Donation Act, Cash Sales, etc.
- U.S. Geological Survey, Cascades Volcano Observatory (CVO), "Volcanoes of Lewis and Clark"
These webpages follows the Biddle/Allen version of the Lewis and Clark journals, complete with many historical maps and images.
- U.S. Geological Survey, Geographic Names Information System (GNIS)
U.S. Board of Geographic Names Information
- U.S. National Park Service
Lots of information about Fort Clatsop and Fort Vancouver, and quite a few smaller places along both sides of the Columbia River.
- Washington State Historical Society
The four-part "Lasting Legacy" provided background material for old names of the rivers, islands, and other features.
Washington State University Libraries Archives, "Early Washington Maps: A Digital Collection"
- Waterfalls of the Pacific Northwest
Fantastic website featuring images and information about Washington and Oregon waterfalls.
while not website links, these books I constantly used over and over
- Hay, K.G., 2004, The Lewis and Clark Columbia River Trail, Timber Press, Portland
- Hitchman, R., 1985, Place Names of Washington, Washington State Historical Society
- McArthur, L.A., and McArthur, L.L., 2003, Oregon Geographic Names, Oregon Historical Society Press, Portland
- Moulton, Gary --- Volumes 1, 5, 6, and 7
Gary Moulton - Online