Decatur Island, Washington Roads / Tertiary Highways

Latitude: 48.5173 (48°31′2″N), Longitude: -122.8059 (122°48′21″W)

Latitude: 48.5147 (48°30′53″N), Longitude: -122.7989 (122°47′56″W)

Latitude: 48.5008 (48°30′3″N), Longitude: -122.8196 (122°49′11″W)