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.
From Groppera ski down the slopes till their end.
Continue going SE towards Angeloga pass, trying not to lose too much height you will arrive in Vallone Stella, where starts the glacier.
Continue skinning up the glacier pointing the NE ridge of Pizzo Stella.
Continue following the ridge till the top. You can go back following the same line you skinned up from.
it will bring you back to the Val di Lei lifts.
Keep in mind that the lifts close at 3:30! Safety glacier material (crampons, harness, rope) is required even though the glacier doesn't present big crevasses on the normal route.