red · Confirmation required
Through-travel on Highway 1 north of Fort Simpson depends on the Liard River and Mackenzie River/N'Dulee crossings, which change between seasonal ferry, ice-crossing and break-up/freeze-up conditions.
An all-season road designation does not guarantee an uninterrupted through-route during river transition periods or ferry disruptions.
Planning response: Confirm both crossings in DriveNWT and the current ferry information before committing to Fort Simpson–Wrigley through-travel.
