Analysing terrain data
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The exposure grade does not take into account objective hazards (stone fall, seracs, etc) but only the consequences of the skier falling.
Low Exposure (E1): Exposure is limited to that of the slope itself. Getting hurt is still likely if the slope is steep and/or the snow is hard.
Medium Exposure (E2): As well as the slope itself, there are some obstacles (such as rock outcrops) which could aggravate injury.
High Exposure (E3): In case of a fall, death is highly likely.
Extreme Exposure (E4): In case of a fall, the skier faces certain death.
To approach Dark Ebony, park at the Mineral Fork, 5.7 miles up Big Cottonwood Canyon on the S side of the road.
Cross through the gate and follow the old jeep road as it winds it's way up into the open canyon.
From here continue up into the canyon, cross over the creek and head up the E fork of the canyon, working through the trees until you hit the ridge.
Finally, continue along until you find the entry and drop on it.
Dark Ebony starts on top of the large slabs named Ivory Flakes which drop into Cardiff Fork.
The line starts with a nice open treed slope in the upper thirty degree range, then narrows down into a treed chute that continues for a thousand feet or so, and empties into the upper reaches of Mineral Fork.
From here you cross over to the W side of the canyon and the follow the old jeep road out to the main highway.