The Grignetta or Grigna south or Grigna of Champion is a mountain in Lombardy (2177 meters) and is part of the group Grigne, being the highest the Grigna or Grignone. Its form is quite regular and there are two sides: one to the south (with a view of Lecco and the Resinelli valley) and another to the north (which connects it with Grignone). There are also other well-defined ridges such as the Sinigaglia Ridge (it can be reached from the Porta refuge) and the Segantini Ridge which connects the Valsecchi hill to the summit, showing a degree of difficulty III. It is a very important place well-known by local and international climbers. The torrent Grigna, born at Canalone Porta, flows into the Caldone and ends at Lecco. The normal route of ascent is the Cermenati ridge (easy walk). The Cecilia trail connects with the Rosalba hut at the top and there are trails with chains. The highway connects the summit of Grignetta to the summit of Grignone.
The paths for regular walkers are marked with the letter E, while those for experienced climbers have a double E. These are very difficult and physically demanding tracks, it is necessary to calculate an average of three hours to climb and two hours to go down.
Trails are free and there is no control to record climbers; so be careful if you do not really have experience; taking the trails is just at your own risk.