Driving the Mt. Baker Highway in Winter
State Route 542 is the only road in, it climbs from sea level to over 5,000 feet, and the rules change with the weather. How to read the road before you leave, and what to carry.
The Mt. Baker Highway is State Route 542. It leaves Bellingham at Interstate 5 exit 255 and runs about 58 miles east: past Deming near milepost 15, Kendall at 22, Maple Falls at 28 and Glacier at 34, then up the mountain to the White Salmon base of the ski area at milepost 52, the Heather Meadows base at 55, and Artist Point at 5,075 feet. In winter the plowed road ends at Heather Meadows; the last 2.7 miles to Artist Point close with the first big snowfall and reopen after clearing, usually in mid-to-late June (10 June in 2026, 27 June in 2025).
One fact to fix in your head before anything else: Glacier and the ski area are not the same place. From a cabin in Glacier the lifts are roughly 17 miles and 30 minutes away on a clear day. From Bellingham it is about 52 miles and an hour and a half; from Seattle about three hours; from Vancouver two and a half to three including the border crossing at Sumas, which is open 24 hours and has a NEXUS lane.
Read the road, then the forecast
The Washington State Department of Transportation posts SR 542 conditions and traction requirements in real time, and mtbaker.us, the ski area's own site, posts a daily road report. Read both the morning you drive. Washington uses three traction levels. Level 1: traction tires advised or required, except four-wheel or all-wheel drive with adequate tread. Level 2: chains required, except 4WD and AWD. Level 3: chains required for every vehicle, four-wheel drive included. The level is posted per route and can change during the day, and above Glacier the highway is steep, winding, unlit and often snow-packed, so carry chains regardless of what you drive.
The road in three parts
Bellingham to Maple Falls is valley driving: wet, often foggy, rarely icy. Maple Falls to Glacier is the transition, where rain turns to snow a few hundred feet at a time and the shoulders disappear. Glacier to the ski area is the mountain: switchbacks that gain about 2,000 feet to the base areas, with the chain checkpoint on the climb. If you are only driving to a cabin in Glacier or the communities just east of it, you are usually below the worst of it, but the same rules apply the moment the snow line drops.
The road can close
It happened in December 2025: an atmospheric river eroded a 110-foot embankment near Wells Creek at milepost 41 and damaged a section near O'Keefe Creek at 43. The highway closed completely around milepost 35, delayed the ski season opening, reopened on 21 December with alternating one-lane traffic, and was fully repaired by 6 February 2026. Storms can also cut power: on 10 February 2026 an outage hit nearly 2,000 addresses around Glacier for a couple of hours. Neither is the norm. Both are why you check WSDOT's SR 542 alerts page before you leave and keep a flashlight in the cabin.
What to carry
Chains that fit your car and that you have practised putting on in a dry driveway. A full tank: the last fuel before the mountain is Maple Fuels in Maple Falls, which closes on Sundays, so fill up in Deming or Bellingham if you are arriving on a Sunday evening. A shovel, a blanket, water and snacks, because a spin-out ahead of you can hold the road for an hour. Cell coverage fades past Glacier, so download your directions and your cabin's arrival instructions before you turn onto the highway. There is no pharmacy, urgent care or full grocery east of Bellingham; the visitor centre in Maple Falls has public Wi-Fi if you need to look something up.
Timing
On a powder Saturday the ski area lots can fill by mid-morning and traffic backs up behind the chain checkpoint. That is the case for a cabin on the corridor: you leave when the snow report says to, not when the traffic lets you, and you are back at the fire while the day-trippers are still queued for Bellingham.