South on US 399 to Izee Road to Paulina
West on OR 380 (Paulina Hwy) to Prineville
Not that much further - pretty remote - limited services in Paulina & Post
General stores in both communities.
Please Note - most of the land along the route is private and fenced.
Also there is extreme fire risk - - thus, don't stealth camp.
Folks in Paulina will probably be accommodating.