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Skagit Valley
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State Route 20
(North Cascades Highway)
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OPEN
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Current: For updates, visit Washington State Department of Transportation.
General: Snow and avalanche hazards usually close the highway sometime in late November / early December; the road will usually re-open sometime in April or early May. Elevation at high point, Washington Pass: 5,477 feet
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Cascade River Road
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CLOSED
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Current: Cascade River Road (CRR) is closed at MP20 (Eldorado), three miles from the trailhead.
Due to snowmelt and road repairs, opening CRR to the trailhead may be early to mid-July. Opening timeframe is dependent on conditions and may change annually.
Currently, if hiking the road, expect groupings of downed trees and for consistent snow to start within a mile of the Cascade Pass trailhead.
General: Road is paved to approximately. 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 as the road is narrow.
Mile 106 off SR 20, in Marblemount. Elevation at road's end: 3660 feet.
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Thornton Lake Road
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OPEN
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General: Road is very rough and steep in places, with deep washboards on switchbacks. High clearance vehicles are recommended. Fallen trees may block sections of road. Road is not plowed or maintained in the winter season.
Mile 117 off SR 20, west of Newhalem. Elevation at road's end: 2600 feet.
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Sibley Creek /
Hidden Lake Road
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CLOSED
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Not maintained in winter, expect snow before the trailhead. Road is significantly rutted, the first steep section of the road is impassible unless you have a high clearance, 4WD vehicle.
General: This ~5 mile long Forest Service Road (USFS #1540) 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. High clearance vehicles recommended.
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Silver/Skagit Road to Hozomeen
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CLOSED
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Current: Closed at US Border, not anticipated to open in 2023 due to damage
General: The road gate at the U.S. border on is usually closed on October 31 for the winter season. 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 sized spare. In spring, low lying sections of this road are vulnerable to flooding during peak snow melt.
Silver-Skagit Road from Hope, BC to Hozomeen, north end of Ross Lake.
Elevation at Hozomeen: 1609 feet
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Stehekin Valley
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| Stehekin Valley Road |
OPEN
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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.
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| Stehekin Shuttle |
OPEN
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A privately run shuttle service operates between the Stehekin Landing and High Bridge, normally from late May to mid October. If you are planning to walk, bike, or ride this route, it is 11 miles from Stehekin Landing to High Bridge. Visit the Stehekin Transportation webpage for more information.
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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 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-Wenatchee National Forest including:
- Hart's Pass Road USFS #5400,
- Twisp River Road USFS #44 and others
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