Fairbanks, and Bassett. It serves as an east–west route between Fairbanks and the Hibbing area, and is also known as Townline Road and Wilson Road at various points throughout its route. County 16 parallels State Highway 37 (MN 37) for part of its route. County Road 17 is a short service route to the Duluth International Airport and the Federal Prison Camp located next to the airport. The route begins at the intersection of Arrowhead Road (CR 32) and Airbase Road, heads northwest along Airbase Road, then heads southbound on Airport Approach Road and Stebner Road, and terminates at the intersection of U.S. Highway 53 and Stebner Road. County Road 20 begins at its intersection with Vermilion Trail (CR 4), near Bass Lake west of Palo, the route heads west and then north into McKinley, and terminates at its intersection with Main Street in McKinley. County 20 is also known as Heritage Trail. The route is 7 miles in length. County 20 intersects State Highway 135 (MN 135) at McKinley, between Gilbert and Biwabik. CR 21–CR 40 County Road 21 (sometimes referred to as Highway 21 or County 21), is a route in the northern portion of the county, serving Pike Township, Embarrass Township, Embarrass, Waasa Township, Babbitt, Morse Township, and Ely. The route begins at its intersection with State Highway 169 (MN 169), near where Highway 169 crosses the Pike River, heads east and north for , enters Ely on Central Avenue, and terminates at its intersection with Sheridan Street (MN 169 / MN 1). County Road 22 (sometimes referred to as Highway 22 or County 22), is a route in the northern portion of the county, serving Bear River, Morcom Township, Sturgeon Township, Alango Township, and Sherman Corner. The route begins in Bear River as Itasca County Road 22 becomes Saint Louis County Road 22, heads east for approximately and terminates in Sherman Corner at the county road's intersection with U.S. Highway 53 and State Highway 1 (MN 1). Until 1996, Itasca and Saint Louis County Roads 22 were Highway 1; and Highway 1 located north paralleling the county roads was the Itasca and Saint Louis County Roads 22. County Road 23 is a route in the northern portion of the county, serving Nett Lake, the Nett Lake Indian Reservation, Orr, Leiding Township, Portage Township, and Buyck. The route begins on Nett Lake Road in Nett Lake, heads