Mount Washington Auto Road
The Mount Washington Auto Road—originally the Mount Washington Carriage Road—is a toll road in southern Coos County, New Hampshire that extends from New Hampshire Route 16 in Green's Grant, just north of Pinkham Notch, westward across Pinkham's Grant and Thompson and Meserve's Purchase to the summit of Mount Washington in the White Mountains of the US state of New Hampshire. The road climbs from an altitude of at the bottom to at the top, an average gradient of 11.6%. The road was completed and opened to the public in 1861. Operations The Auto Road may be traversed by private vehicles, and there are also guided tours in vans, called stages. The toll on private cars includes a bumper sticker with the text, "THIS CAR CLIMBED MT. WASHINGTON". No bicycles are allowed on the road, except for participants during specific bicycle events (see below). Weather sensors The road has a series of sensors located at various altitudes along it. The sensors transmit weather data via a solar-powered radio link. Events The oldest auto race in the United States, the Mount Washington Hillclimb Auto Race, was hosted on the auto road in 1904. Every year in June, the mountain road is host