Where is the 666 km (414 miles) Dalton Highway known as one of the most dangerous roads in the world located?

The James W. Dalton Highway, usually referred to as the Dalton Highway (and signed as Alaska Route 11), is a 414-mile (666 km) road in Alaska. Once called the North Slope Haul Road (a name by which it is still sometimes known), it was built as a supply road to support the Trans-Alaska Pipeline System in 1974. It is named after James Dalton, a lifelong Alaskan and an engineer.

The highway, which directly parallels the pipeline, is one of the most isolated roads in the United States. There are only three towns along the route: Coldfoot at Mile 175, Wiseman at Mile 188, and Deadhorse at the end of the highway at Mile 414. Fuel is available at the E. L. Patton Yukon River Bridge (Mile 56). Two other settlements, Prospect Creek and Galbraith Lake, are uninhabited except for campers and other short-term residents.

The road itself is mostly gravel, very primitive in places, and small vehicle and motorcycle traffic carries significant risk. The nearest medical facilities are in Fairbanks and Deadhorse. Anyone embarking on a journey on the Dalton is encouraged to bring survival gear.

The highway comes to within a few miles of the Arctic Ocean. There are commercial tours that take people to the Arctic Ocean. All vehicles must take extreme precaution when driving on the road, and drive with headlights on at all times.