The Skier’s Highway

West Dover to Stowe

Green Mountains · Vermont · United States

Key measurements

Distance

136.2 miles

Elevation gain

7,485 ft

Elevation loss

8,463 ft

High point

2,399 ft

Low point

410 ft

Net change

-978 ft (1,694 ft to 716 ft)

Route type

point-to-point

Route Overview

Tracing the spine of the Green Mountains, Vermont Route 100 is New England's definitive north-south valley ride. This 136.2-mile traverse links southern ski country to the shadow of Mount Mansfield and the Stowe ski area, following a series of interconnected river corridors, narrow gulfs, and high-elevation ridgelines.

Starting in West Dover, the route tops out early at 2,398.6 feet near Mount Snow before settling into a rhythmic progression through working forestland, glacial lake basins, and classic village greens. The road descends to its lowest point of 410.4 feet in the Winooski River valley near Waterbury before finishing in Stowe. The geography offers a continuous mix of sweeping floor-valley bends, forested canopy stretches, and elevation changes through the heart of rural Vermont.

Key Segments & Geographic Transitions

Southern Green Mountain Ridge — Miles 0.0–28.8

Beginning in West Dover, the route climbs immediately along the flanks of the Deerfield River valley, reaching the ride’s high point of 2,398.6 feet at Mile 5.0. The terrain here is densely forested mountain high-country. After crested pass sections, the road rolls downhill into broader, undulating terrain toward Londonderry, following narrow stream beds with tight, shadowing tree canopies and variable pavement surfaces.

Black River Lake Corridor — Miles 31.5–58.0

North of Londonderry, VT-100 enters the Black River drainage. The highway contours past Okemo Mountain into Ludlow, where mountain terrain gives way to a string of narrow glacial lakes—Rescue Lake, Echo Lake, and Amherst Lake. This segment features fluid, sweeping bends that track close to the water level, framed by steep valley walls and historical mill village bottoms.

Upper White River Gap — Miles 58.4–67.2

Transitioning east of Killington Peak, the road runs through the narrow upper reaches of the White River valley. The floor tightens significantly here, pinning the road between riverbanks and mountain footings. The asphalt twists along natural watercourses with frequent grade changes and sharp, blind contours carved into the bedrock.

Rochester Basin & Mad River Valley — Miles 71.2–106.6

This extended stretch represents classic central Vermont valley riding. Heading north through Rochester and Granville, the road squeezed through Granville Gulf—a dense, shaded wilderness pass where forest walls drop directly to the road shoulder. North of the gulf, the route opens into the pastoral Mad River Valley through Warren and Waitsfield, offering wide mountain views, river crossings, and gentle, continuous curves.

Winooski Valley Descent to Mount Mansfield — Miles 107.6–136.2

The final leg drops into the Winooski River basin, reaching the trip's lowest elevation at Mile 124.8 in Waterbury. After crossing the river plain and passing under Interstate 89, VT-100 ascends gradually along the eastern base of the Mount Mansfield range into Stowe. The environment shifts from open agricultural river flats to a busy resort corridor lined with historic architecture and higher traffic density.

Seasonal & Environmental Context

Spring riding (May to early June) brings heavy runoff, localized silt or gravel in turns, and lingering frost-heave damage across higher-elevation stretches. Summer offers reliable pavement warmth and clear mountain visibilities, though afternoon thunderstorms form quickly over the ridges.

Autum (late September through mid-October) is peak foliage season; bright canopy colors are accompanied by significantly reduced travel speeds, heavy tour traffic, and damp morning shade in deep river gaps where fallen leaves create slick surface patches.

Logistics & Services

Fuel, food, and supplies are regularly spaced throughout the journey. Village hubs roughly every 15 to 25 miles—including Londonderry, Ludlow, Rochester, Waitsfield, Waterbury, and Stowe—provide easy access to gas and roadside services.

Cellular coverage is reliable through major town centers and wide valley sections, but drops out completely in narrow mountain passes, specifically through Granville Gulf and tight river notches.

Important Considerations

Surface Variations: New England freeze-thaw cycles create prominent frost heaves, tar snakes, and sudden pavement seams. Shaded mountain notches often conceal damp pavement long after surrounding areas have dried. * Village Speed Zones: Speed limits drop sharply from 50 mph to 25–35 mph upon entering town centers along VT-100. Local traffic enforcement is active and strictly managed in these historic village districts. * Wildlife Risks: Moose and white-tailed deer are common hazards along the forested margins of VT-100, particularly around Granville Gulf and early morning/dusk hours in low-lying river bottoms.