A fatal collision and a wildfire are causing major traffic snarls for people trying to drive east or west through the mountain parks along the Alberta-B.C. boundary.
RCMP say the Trans-Canada Highway is closed near Field, after a woman was killed in a traffic accident.
Mounties say traffic is backed up in both directions.
Meanwhile, Highway 93 remains closed in both directions from Radium, into Alberta due to a forest fire.
There is no information on when either route will reopen.
Motorists are being detoured further south via Highway 3 through the Crowsnest Pass.
The Canadian Press