Campo dell'Osso - Ponte Lungo - Stellante - Acqua del Piccione
- Trail Conditions: On foot
- Interest: Wildlife, Geology
- Departure: Campo dell'Osso (1,544m)
- Arrival: Acqua del Piccione
- Duration: 1 hour/s 30 minutes
- Difficulty Level: E - Hiking (level)
- Length: 5.5 km
- Difference in height: Uphill 68m - Downhill 507m
- Minimum Altitude: 1,112m
- Maximum Altitude: 1,591m
Ring-route. You can also follow it only in part, up to the springs, with return journey developing along the same trail. Anyway, it is recommended to visit the springs of Piccione and Cardellina.