 (From Grass Valley Road, Muddy Road heads due east as a dirt road along the county line to end just short of the foothills the Sonoma Range and Power Line heads due west along the county line, also as a dirt road, to end at Herschell Road at the northeastern base of the East Range.Grass Valley Road continues south past the community of Grass Valley, through the Grass Valley, and on to the southern part of Pleasant Valley.