Late frontier by Wilson, Bruce A
Ferryboats on the Columbia River, including the bridges and dams by Ruby, Robert H
Images of Okanogan County as photographed by Frank S. Matsura by Matsura, Frank
Indians of the Pacific Northwest by Ruby, Robert H
The North Cascades by Dietrich, William
Washington by Tieck, Sarah
Wildflowers of the Pacific Northwest by Turner, Mark
Sagebrush country by Taylor, Ronald J
A guide to the Indian tribes of the Pacific Northwest by Ruby, Robert H
Sources of the river by Nisbet, Jack
From Copenhagen to Okanogan by Fries, U. E
The Rusty Dusty by McCulloch, Mac
Hiking through history, Washington by Barnes, Nathan
A field guide to edible mushrooms of the Pacific Northwest by Winkler, Daniel
Ranching in the Okanogan
Okanogan County ... a profile by Widel, Glen
Fire, faults & floods by Mueller, Marge
Building the Columbia River Highway by Willis, Peg
Roadside geology of Washington by Alt, David D
Exploring Washington's backroads by Deviny, John
Boom towns & relic hunters of Washington state by Smith, Jerry
Stern-wheelers up Columbia by Mills, Randall Vause
Told by the pioneers by United States. Works Progress Administration (Wash.)
Northwest weeds by Taylor, Ronald J