Ive used ACA maps on two routes and sight seeing doesn't appear to be a big factor. Sometimes they have an alternative route to a city, or somewhere such as the Gila cliffs, but those are optional and rejoin with the original route.
Your username and password for these discussion forums are unique to the forums. Your forum login information is separate from your My Adventure Cycling login information, and your login info for the Cyclosource online store. You will need to create a separate login for each of these. However, to make things a bit easier, you can use the same email and password for all three accounts. Also, please note that your login information for the forums is not connected to your Adventure Cycling membership number. We apologize for any inconvenience caused.
We have blocked registrations from several countries because of the large quantities of spam that originate there. If the forum denies your legitimate registration, please ask our administrator for an exception. firstname.lastname@example.org will need your IP address, which you can find at many web sites, including http://whatismyipaddress.com.
Heavily dependent. WA 20 sounds like it's out. Significant fire activity near Winthrop, Twisp, Okanogon and Omak, WA. If you look at the Winthrop KOA web site there is an alter noting that while the campground is open, portions of WA 20 east and west of the facility are closed.
There is also a fire near Chelan, WA. Also, one near John Day, OR, which I believe is on the TransAm route, has grown and could get bigger:
Another smoke and fire dependent route recommendation.
Take train north to Seattle and east to Whitefish. Then do the National Parks routes. Since you are in the US, no better place to tour than Glacier and Yellowstone Parks. Tourist season is winding down (after Labor Day) and the roads should be nice and quiet.