The Nebraska State Highway System consists of all the state highways in Nebraska maintained by the Nebraska Department of Roads. This includes federally designated Interstates and US Highways as well as state highways, links and spurs. The system comprises of state highways in all 93 counties. Highways within the system range in scale and quality from 10-lane urban freeways, such as I-80 around Omaha, to standard two-lane rural undivided highways as well as of state highways that remain unpaved such as N-67 north of Dunbar. Surrounding landscapes along the highway system range from the urban areas in Omaha and Lincoln to scenic journeys through uninhabited grasslands in the Nebraska Sandhills.