The road is "Geology Tour Rd" and located in Joshua Tree National Park. Both the GPS and Basecamp have City Navigator North America NT2018.2. I reinstalled the latest map in the GPS.
The road appears in Basecamp and can be routed, but the GPS takes a 80 miles detour around it. Also the road does not appear in the GPS map display. Ive tried different map detail settings with the Geology Tour Rd still not appearing.
Any thoughts as to how this can me mended? Thanks!