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Extension

Black diamond Cannon Mountain, NH

Steepest pitch24°
Vertical285 ft
Length1,011 ft
Average pitch17°
FacesNE
Top2,940 ft

Extension drops 285 vertical feet over 1,011 feet of skiing, with a steepest pitch of 24° about 220 feet below the top. That's steeper than 19% of the 4,740 black diamond runs we've measured in North America, and the 44th steepest of 92 named runs at Cannon Mountain. It faces northeast.

How well Extension holds snow

Snow preservationExcellent

Facing northeast at an average 17°, Extension gets about 47% of the winter sun that flat ground at Cannon Mountain does, December through March. That's shadier than 95% of the runs we've measured, and the 13th shadiest named run at Cannon Mountain. Its top sits at 2,940 feet.

Shaded snow stays colder and drier, so it holds powder longer after a storm and is slower to crust over or turn to slush in spring. Shading from ridges and trees isn't counted yet.

Extension profile

under 25°25–35°35–45°45°+ Hover to follow the line on the map.

Where it is on the mountain

Runs like Extension elsewhere

Nearby at Cannon Mountain

Measured by ZRankings from 1-meter USGS lidar. Steepest pitch is the steepest stretch of about 50 vertical feet along the skiable line. Run lines come from OpenStreetMap and can sit a little off the skied path.