davis from the solano county line to causeway is chp black
when u turn onto 80 from 50 becomes gold - reed ave etc up to riverside / placer county line
i am not quite sure about up in the hills
at the placer cnty line its the green - i THINK the green continues up to colfax 174 or just a little above where it becomes the gray
then gry to the border then you can listen to nhp on the nevada shared rptr system using peavine or a few other mtn tops