The Via Kiene to the Castelletto Inferiore, opened in 1910 by the Kiene brothers, embodies many of the best features that a climber could want from a climbing route: the beauty of the environment, the quality of the rock, the variety of climbing, the elegance of the line, the south face exposure.

This is one of the tours, although not requiring excessive effort, that lead into the heart of the Brenta Group. The Refuge Tuckett, in fact, is conveniently located for a variety of absolutely worthy itineraries, both uphill and crossing.

The normal route to Castelletto Inferiore, in the classic guide by Buscaini and Castiglioni, is described as a route of II degree. Presumably, for the two authoritative authors, it had the character of a really undemanding climb. It is a common opinion, taking into account the way degrees of difficulty are assigned today, that the real difficulty is III, III +, with a step of IV-.