Analysing terrain data
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.
A narrow, steep chute for experts only, Johnson's Chute can be found in Niagaras.
This is experts only terrain.
Enter through Gate 9.
Note that hazards such as cliffs, rocks, and other concerns are not marked.
Watch for thermal activity at the top of this run, where sink holes might exist.
As this run descends 1500 vertical feet, it gets steeper and more committing as you go.
This chute avalanches regularly.
Ski and ride with a partner and carry the proper avalanche equipment.
Of the two main couloirs on Niagara's, Johnson's is the steeper one.
Work the rib on the left, where snow holds longer, before committing to the main funnel.
It is possible to ride this rib, but often requires some mandatory air to clear the rocky apron at the bottom.
This chute is deeper than its neighbor, Old Failthful, and so can hold snow a little longer.
Still, thanks to regular avalanching and eastern exposure, the snow here is never deep.
Watch for rocks.