Passo Tonale, with 60 cm of fresh snow Saturday open plants glacier Presena

Even quest''anno Presena glacier opens a month earlier than other tracks thanks to the geotextile sheets that have kept away from sunlight from late June to mid September. In some places the difference with the areas devoid of towels was even 3-4 feet thick, has been preserved for 50-60% of the snow that had accumulated during the previous winter, and this "base" is a few years the prerequisite in order to give the go ahead to the winter season.