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.
##Access From Cleuson reach the alpage that dominates and climb the Bisse de Chervé.
climb grassy slopes in the valley that reaches the foot of the wall S of Perron until about 2450 m, then climb the vertical flank of grass (corridor that stretches to the W of the perron) until you reach a rocky hillock left.
reach alpie of the road. ##Itinerary L# | 5b | 35 m | Along a small edge L# | 5a | 35 m | Straight on the wall, compact. L# | 5b | 30 m | A fine step to the beginning then easier with free dams. From the top of the road, follow the easy ridge (some more delicate pass) and partially equipped the closer to the edge up to the bottom of the summit. ##Descent Without difficulty by the NE slope then by the Creux de Tsava.<br/><br/>_This Adventure has been shared under the [Creative Commons Share Alike](https://creativecommons.org/licenses/by-sa/2.5/) licence._