Washington 1:100K Topo Maps
These 1:100 K USGS topographic maps of Washington, similar to the 1:250K scale USGS maps in that they are an excellent map source for getting a good sense of the layout of a large area of land. Because they are more detailed than the 1:250K scale maps, these topographic maps of Washington tend to show more features such as roads, creeks and some smaller towns. Each map unfolds to a size of about 29" x22" (not including border) and covers about a 46 x 34 mile area.
If you like this scale, the DNR maps of Washington are also 1:100 K with the same coverage and names, no contour lines, but better roads.