Petersburg is accessed by air and water. It is on the mainline state ferry route and has ferry terminals on the north and south ends of Mitkof Island. The state-owned James A. Johnson Airport has a runway for scheduled jet service and small plane charter services. Lloyd R. Roundtree Seaplane Base (on the Wrangell Narrows) allows for float plane services. Harbor facilities include a petroleum wharf, barge terminals, three boat harbors with moorage for 700 boats, a boat launch, and a boat haul-out. Freight arrives by barge, ferry, or cargo plane. There is no deep-water dock for large ships (such as cruise ships); passengers are lightered to shore. Remote areas of the Borough are served by small state-owned boat docks at Papke's Landing in the Wrangell Narrows, on Kupreanof Island at the City of Kupreanof, and in Hobart Bay. Boat launch ramps are located on the south end of Mitkof Island at Banana Point, Blaquerie Point, and Woodpecker Cove. The state owned Mitkof Highway carries traffic north and south and is paved or chip sealed for 28 miles between the South Mitkof Ferry Terminal and the airport.