Table of degree of difficulties

TREKKING
T: very visible way along rural cart-roads, mule-tracks or easy paths at an altitude of about 2000 m.
E: way characterized by not always visible paths, even at elevated altitudes.
EE: hardly visible way or part of the way, characterized by easy climbing rocky passages, crossing of sharp snowfields, exposed and aerial stretches, equipped parts with different means (hard and fixed ropes, etc...) requiring the use of safety rope with friction plate and karabiner.