• View from Sourdough Mountain Overlook  A view looking down onto Diablo Lake. Photo Credit: NPS/Michael Silverman, 2010.

    North Cascades

    National Park Washington

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  • Lone Mountain Fire - Trail Closures

    The Lone Mountain Fire in North Cascades National Park is approximately 5 mi NW of Stehekin in the Boulder Creek drainage. Boulder Creek and War Creek Trails are closed. More »

  • USFS closes Easy Pass Trail from State Route 20

    Due to fire activity near the trail, the US Forest Service has closed the Easy Pass trail and trailhead on State Route 20. This area has been receiving precipitation. The highway remains open.

Road Conditions

Road Status Comments
Skagit Valley

State Route 20
(North Cascades Highway)

Elevation at high point, Washington Pass: 5,477 feet


Re-opened for the season on May 8 at noon!

Avalanche hazard usually closes the highway sometime in late November / early December and it usually re-opens sometime between April to early May. Normal winter closure is between MP 134 (Ross Dam Trailhead) and MP 171 (Silver Star Creek). For updates, including re-opening information, conditions and the history of pass closure dates, visit Washington State Department of Transportation.

Cascade River Road

Mile 106 off SR 20, in Marblemount

Elevation at road's end: 3660 feet


Notice of Road Closure for fall 2014: Cascade River Road will be closed to all public use, 24 hrs/day, 7 days/week, above the Eldorado gate at mile post 20 (three miles from the road's terminus) from September 8 until late October, 2014, in order to perform permanent repairs at the Boston Creek crossing, 1.2 miles from the Cascade Pass trailhead. The Boston Creek crossing has been repeatedly damaged and closed, most recently in August 2013, when over 100 visitors were stranded after a storm caused a sudden road washout.

The maintenance work at Boston Creek will close the road to all vehicle and foot traffic due to the many large construction vehicles that will be using the road and working at the site seven days per week. Public access of any kind to the Cascade Pass trailhead and all Boston Basin climbing routes via the road will not be possible during the closure. Press Release

Currently: The road is open to the trailhead as of June 5.

During late autumn, winter, and spring the road is gated at mile post 20 (Eldorado Creek), three miles before the road's end at the Cascade Pass trailhead. During the late autumn, winter, and spring, the road is open below the gate as snow conditions permit.

This road is vulnerable to washouts during periods of heavy rain, so be prepared, and move to safer ground if need be.

Road is paved to approx. mile 10, then gravel with some potholes and washboards, but generally drivable for low clearance vehicles. Not suitable for large RVs due to steep and narrow sections and some sharp switchbacks. Please drive slowly, road is narrow.

Thornton Lake Road

Mile 117 off SR 20, west of Newhalem

Elevation at road's end: 2600 feet


Open to the trailhead at road's end. Rough on the upper section. Road is not plowed or maintained in the late fall, winter, and spring.

Road is very rough and steep in places, with deep washboards on switchbacks. High clearance vehicles are recommended.

Sibley Creek/Hidden Lake Road
(USFS #1540)

Mile 9.7 off Cascade River Road

Elevation at road's end: 3700 feet

OPEN as conditions permit

This ~5 mile long Forest Service Road can be rutted and rough, drive slowly. Narrow with switchbacks and very few pull-offs. Parking lot is small and turn-around can be difficult.

Not plowed or maintained during fall, winter, and spring.

As of May 25, boulder in road at ~2.5 miles. Vehicles can get around. Snow free, but rough road to the trailhead.

Hozomeen Road

Silver-Skagit Road from Hope, BC to Hozomeen, north end of Ross Lake

Elevation at Hozomeen: 1609 feet


Opened May 23.

This road also provides access to Silver Lake and Skagit Valley Provincial Parks in British Columbia. Road can be rough and rocky, flat tires are not uncommon, carry a full spare.

No recent report. Road is subject to flooding during the spring snow melt.

Stehekin Valley

Stekekin Valley Road
The road extends 13 miles from Stehekin Landing to two miles above High Bridge, just before Car Wash Falls. Not maintained in winter above mile 9, at Stehekin Valley Ranch.

Hikers and stock can access areas above Car Wash Falls via the Old Wagon Trail (Pacific Crest Trail) and Upper Stehekin Valley Trail. Bikes are not allowed above Car Wash Falls.
Stehekin Shuttle


Visit the North Cascades Lodge at Stehekin website for a current schedule. This privately run shuttle service operates between the Stehekin Landing and High Bridge, normally from late May to mid October (4 round trips daily in summer). If you are planning to walk, bike, or ride this route, it is 11 miles from Stehekin Landing to High Bridge.


Many trails and climbing routes in the park complex are accessed via U.S. Forest Service roads. To learn about current conditions on these roads, please follow the links below.

Mt. Baker-Snoqualmie National Forest Conditions Report, including:

  • Baker Lake Road USFS #11 (access to Mt. Shuksan and Baker River Trail),
  • Shannon Creek Road USFS #1152/14 (access to Mt. Shuksan),
  • Hannegan Pass Road USFS #32 and others

Okanogan National Forest Conditions Report, including:

  • Hart's Pass Road USFS #5400,
  • Twisp River Road USFS #44 and others

Did You Know?

Did You Know?

North Cascades NPSC has over 300 glaciers, more than any other park in the lower 48 states. More than half the glaciers in the 48 states are concentrated in this mountainous wilderness region called the North Cascades.