From the northern end of the Willamette Valley, we'll first head east through the Columbia Gorge. Below are day-by-day routes from mapmyride.com (apologies for any annoying ads):
North Portland to Ainsworth State Park via Columbia River bike path and the Historic Columbia River Highway
Ainsworth State Park to Deschutes River State Recreation Area
South to Madras, roughly following Highway 97
Madras to Highway 20 via Crooked River Highway
Madras to Highway 20 via a route south of the Crooked River Highway
Highway 20 to near Burns, OR
Burns, OR to Fields, OR via Catlow Valley Road (southern pass of Steens Mt.)
Burns, OR to Fields, OR via northern pass of Steens Mt.
From Fields, OR south on Fields-Denio Rd to Highway 140 - cross into Nevada
Fernley, NV to Hawthorne, NV via Highway 95
Remainder of route TBD
Mileage is ambitious for most days. We'll update with photographs as battery power and cell service allows!