My first CO was border—Nyssa to Florence. While it was all on road there looked to be some off road riding around, especially in Malheur on the way to John Day. In 2012 we did some of the Oregon Outback starring in Bly up to Silver Lake. There was basically nothing in between in the way of commercial activity. Almost no traffic. Our rest stops we’re wherever they could find space off the road. Within last couple of years I read an article about bikepacking the Outback. It may have been in Adventure Cyclist.