Forest Route 20, [1] Mountain Loop Scenic Byway | |
Route information | |
Maintained by Snohomish County and USFS | |
Length | 54 mi [2] (87 km) Includes 14-mile (23 km) unpaved section |
Existed | March 23, 1936 (Construction begins) December 1941 (Highway opened) [3] –present |
Major junctions | |
West end | SR 92 in Granite Falls |
East end | SR 530 in Darrington |
Location | |
Country | United States |
State | Washington |
Highway system | |
The Mountain Loop Highway is a scenic byway in the U.S. state of Washington. It traverses the western section of the Cascade Range within Snohomish County. The name suggests it forms a full loop, but it only is a small portion of a loop, which is completed using State Routes 92, 9, and 530. Part of the highway is also a designated and signed Forest Highway, and is known as Forest Route 20. [1]
The highway connects the towns of Granite Falls and Darrington. It is paved for 34 miles (55 km) from Granite Falls to Barlow Pass (2349') where the highway becomes unpaved for 13 miles (21 km), and then paved again for the remaining 9 miles (14 km) to Darrington. The unpaved section is U.S. Forest Service Road #20 and passes several USFS campgrounds. Portions of the unpaved section are often closed for periods of several years due to flood damage.
Between Granite Falls and Barlow Pass, the highway passes Big Four Mountain and the trailhead leading to the Big Four Ice Caves at its base. At Barlow Pass, a gravel road maintained by Snohomish County [4] (closed to motor vehicles) branches from the highway and leads to the former silver mining town of Monte Cristo. The portion from Granite Falls to Barlow Pass follows the Stillaguamish River. The portion from Barlow Pass to Darrington follows the Sauk River. The "inside" of the highway's namesake loop is a large area containing significant Cascade peaks, including Three Fingers (6,850 ft; 2,090 m), Whitehorse Mountain (6,850 ft; 2,090 m), Mount Dickerman (5,723 ft; 1,744 m), and Mount Forgotten (6,005 ft; 1,830 m).
The Mountain Loop Highway starts at the eastern end of SR 92 in Downtown Granite Falls. Within Downtown Granite Falls, SR 92 is called E Stanley Street and the Mountain Loop Highway is known called N Alder Street. [5] The highway goes north away from Granite Falls and turns east at the point where the road meets the South Fork of the Stillaguamish River. From there, the road roughly follows the river and intersects some Forest Routes such as FR 4201, FR 4018, FR 4020, FR 4037, FR 4052, and FR 4059 while traversing the communities of Robe, Verlot, and Silverton before the river ends. [6] The loop continues and intersects a private road that connects the highway to the Old Monte Cristo Townsite, which is located 4 miles east of Barlow Pass.
At Barlow Pass, the Mountain Loop Highway goes north, and becomes unpaved Forest Route 20 or FR 20. Shortly after becoming unpaved, FR 20 starts to follow the Sauk River towards Darrington. FR 20 goes northward past Bedal, and it becomes paved again at the new Whitechuck bridge (approximately mile marker 44). [7]
From Whitechuck, the Mountain Loop Highway continues north along the Sauk River. On the opposite side of the river, the N. Sauk River Road (Forest Route 22) parallels the route of the Mountain Loop Highway. The loop enters Darrington, where Railroad Avenue splits from the highway to become a short bypass to the eastern end of the highway. The highway ends at SR 530. [8] [9]
The Mountain Loop Highway was established on March 23, 1936. Before the highway was built, primitive and very rough wagon roads connected the Monte Cristo Townsite with the small towns of Darrington and Granite Falls. A narrow wagon road, known as Wilmans Trail or Pioneer Trail, or simply the Sauk wagon road, was built from Sauk City on the Skagit River to Monte Cristo in 1891. That same year, the surveyor M.Q. Barlow discovered the feasibility of access to Monte Cristo via the South Fork Stillaguamish River. Mining interests funded a wagon road from Silverton to the Sauk wagon road via Barlow Pass. [10] These roads roughly followed the current route of the Mountain Loop Highway along with some railroads. Construction of the road started in 1936 and finished in 1941. The road was closed in 1942 due to the World War II. [3]
The highway closes mostly in the winter due to floods and reopens in the spring of the following year, but a flood in 2003 closed the highway. With other windstorms following in 2006 and 2007, the highway had to be closed until 2008. [11]
The Mountain Loop Highway officially reopened on June 25, 2008, and the cities along the full loop (Arlington, Granite Falls, and Darrington) had a large celebration. [11] [12] [13] [14]
The entire highway is in Snohomish County.
Location | mi | km | Destinations | Notes | |
---|---|---|---|---|---|
Granite Falls | 0 | 0.0 | SR 92 west – Lake Stevens | Western end | |
Barlow Pass | 34 | 55 | Barlow Pass | ||
| East end of paved road Southern end of Forest Route 20 | ||||
| Southern end of paved road Northern end of Forest Route 20 | ||||
Bedal | 47 | 76 | North Sauk River Road | ||
Darrington | 51.5 | 82.9 | To SR 530 west (via Railroad Avenue) | Bypass to SR 530 | |
52 | 84 | SR 530 north – Rockport | Eastern end, continuation as SR 530 north | ||
1.000 mi = 1.609 km; 1.000 km = 0.621 mi |
Darrington is a town in Snohomish County, Washington, United States. It is located in a North Cascades mountain valley formed by the Sauk and North Fork Stillaguamish rivers. Darrington is connected to nearby areas by State Route 530, which runs along the two rivers towards the city of Arlington, located 30 miles (48 km) to the west, and Rockport. It had a population of 1,347 at the 2010 census.
Granite Falls is a city in Snohomish County, Washington, United States. It is located between the Pilchuck and Stillaguamish rivers in the western foothills of the Cascade Range, northeast of Lake Stevens and Marysville. The city is named for a waterfall north of downtown on the Stillaguamish River, also accessible via the Mountain Loop Highway. It had a population of 3,364 at the 2010 census.
The Sauk River is a tributary of the Skagit River, approximately 45 miles (72 km) long, in northwestern Washington in the United States. It drains an area of the high Cascade Range in the watershed of Puget Sound north of Seattle. The river is a popular destination for fly fishing. It is a National Wild and Scenic River.
The Stillaguamish River is a river in the northwestern region of the U.S. state of Washington. It is mainly composed of two forks, the longer North Fork Stillaguamish and the South Fork Stillaguamish. The two forks join near Arlington. From there the Stillaguamish River proper flows for 22 miles (35 km) to Puget Sound. The river's watershed drains part of the Cascade Range north of Seattle.
The San Juan Skyway Scenic and Historic Byway is a 236-mile (380 km) All-American Road, National Forest Scenic Byway, and Colorado Scenic and Historic Byway located in Dolores, La Plata, Montezuma, San Juan, and San Miguel counties, Colorado, United States. The byway forms a loop in southwestern Colorado traversing the heart of the San Juan Mountains. The San Juan Skyway reaches its zenith at Red Mountain Pass at elevation 11,018 feet (3,358 m). Mesa Verde National Park was one of the original UNESCO World Heritage Sites. The Silverton Historic District and the Telluride Historic District are National Historic Landmarks.
The Barlow Road is a historic road in what is now the U.S. state of Oregon. It was built in 1846 by Sam Barlow and Philip Foster, with authorization of the Provisional Legislature of Oregon, and served as the last overland segment of the Oregon Trail. Its construction allowed covered wagons to cross the Cascade Range and reach the Willamette Valley, which had previously been nearly impossible. Even so, it was by far the most harrowing 100 miles (160 km) of the nearly 2,000-mile (3,200 km) Oregon Trail.
Whitehorse Mountain is a peak near the western edge of the North Cascades in Washington state. It is located just southwest of the Sauk River Valley town of Darrington, near the northern boundary of Boulder River Wilderness in Mount Baker-Snoqualmie National Forest. While not of particularly high absolute elevation, even for the North Cascades, it is notable for its large, steep local relief. For example, its north face rises 6,000 feet in only 1.8 mi (2.9 km).
State Route 530 (SR 530) is a state highway in western Washington, United States. It serves Snohomish and Skagit counties, traveling 50.52 miles (81.30 km) from an interchange with Interstate 5 (I-5) southwest of Arlington past SR 9 in Arlington and Darrington to end at SR 20 in Rockport. Serving the communities of Arlington, Arlington Heights, Oso, Darrington and Rockport, the roadway travels parallel to a fork of the Stillaguamish River from Arlington to Darrington, the Sauk River from Darrington to Rockport and the Whitehorse Trail from Arlington to Darrington.
Barlow Pass is a mountain pass on the west side of the Cascades in Washington on the Mountain Loop Highway between Silverton and Darrington. It is a popular trail head for access to the old mining town of Monte Cristo and has a branch off to hike up to Gothic Basin, which is about a mile in.
State Route 92 (SR 92) is a short state highway entirely within Snohomish County, Washington, United States. The nine-mile (14.5 km) highway connects SR 9 in Lake Stevens to the Mountain Loop Highway in Granite Falls.
Monte Cristo is a ghost town northwest of Monte Cristo Peak, in eastern Snohomish County in western Washington. The town was active as a mining area for gold and silver from 1889 to 1907, and later became a resort town that operated until 1983.
The Robe Canyon Historic Trail is a county park and hiking trail located east of Granite Falls, Washington. The park, maintained by Snohomish County, encompasses 970 acres (3.9 km2) of wilderness area along the Stillaguamish River and features railroad tunnels, river beaches, and hiking trails.
The Whitehorse Trail is a rail trail in northern Snohomish County, Washington, connecting the cities of Arlington and Darrington. The 27-mile-long (43 km) trail uses a former Northern Pacific Railway spur built in 1901 and abandoned in 1990. The trail has been in development since the county government purchased it in 1993, with some sections open to the public.
Galena is a ghost town in Snohomish County, Washington. Galena is located in the Cascade Mountains, northeast of the town of Index. North of Galena lies Mineral City.
Stillaguamish Peak is a 5,720+ ft mountain summit near the western edge of the North Cascades, in Snohomish County of Washington state. It is located five miles north-northwest of Barlow Pass near the Monte Cristo area, and is situated on land administered by the Mount Baker-Snoqualmie National Forest. It rises 4,000 feet (1,200 m) above the Stillaguamish River and the Mountain Loop Highway.
The Everett and Monte Cristo Railway was built to transport gold and silver ores from mines in the central Cascade Mountains to a smelter in Everett, Washington. After the first mining claims were staked in 1889, entrepreneurs began exploring the possibility of building a railroad to exploit the find. Construction began in April 1892 and the first train reached what became the town of Monte Cristo in August 1893. The mining boom ended in 1903. Poor ore quality and quantity played a role in the decline, but the failure of the railway to maintain service to Monte Cristo in the face of floods, landslides, winter snows, fires, and other disasters was also a factor in the collapse of the industry. Nonetheless, the railway hauled out approximately 300,000 tons of ore over the course of its operations.
Del Campo Peak is a prominent summit near the western edge of the North Cascades, in Snohomish County of Washington state. It is located south of Barlow Pass along the Mountain Loop Highway near the Monte Cristo area. It is situated on land administered by the Mount Baker-Snoqualmie National Forest. The mountain is named for a mining claim on the mountain's slope. The nearest peak is Gothic Peak, 0.5 miles (0.80 km) to the southwest, and Foggy Pass is the low point between the two peaks. Foggy Lake lies in Gothic Basin below the south face of Del Campo Peak and collects precipitation runoff which ultimately drains to South Fork Sauk River via Weden Creek. Runoff from the west side of the mountain drains into the Sultan River, and the north side drains into headwaters of the Stillaguamish River. In terms of favorable weather, the best months for climbing are July through September.
Sheep Mountain is a 6,166-foot-elevation (1,879-meter) summit near the western edge of the North Cascades, in Snohomish County of Washington state. It is located one mile east of Barlow Pass along the Mountain Loop Highway near the Monte Cristo area. It is situated on land administered by the Mount Baker-Snoqualmie National Forest. Back in the old mining days of the late 1800s, the long sub-range stretching from Cadet Peak to Sheep Mountain was known as Pride of the Mountains Range. Precipitation runoff from the mountain drains into tributaries of the Sauk River.
Nels Bruseth was an American mountaineer, naturalist, author, and painter. He was a forest ranger employed by the United States Forest Service from 1916 to 1951 at a ranger station in Darrington, Washington, where he was a civic booster.
Sperry Peak is a 6,120+ ft mountain summit in Snohomish County of Washington state.
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