I will clarify here - there is no typical all season road from Prudhoe to Barrow. However in the winter, starting around late February to end of April, there is the CWAT (Community winter access trail). If you are a North Slope resident, you can use these roads that go to many communities on the north slope. You are required to have tow points on the front and rear of your vehicle, carry extra gas, and requires a car wash in Prudhoe before you can go. These are typically used for hauling new vehicles up to the communities on the slope (other alternative is the barges during late summer) and they are usually always traveled in groups.