Stage 19, and it's one of the oddest GT stage designs I can remember. It consists of two laps of a ~60-kilometre circuit over the Alto del Piélago which is left in the final kilometres to finish in the centre of town. On paper it should be one for the break, but neither a GC ambush stage nor a (heavily) reduced bunch sprint can be ruled out here - indeed, an attempt at the former could lead to the latter.
Puerto del Piélago:
Final kilometres:
Puerto del Piélago:

Final kilometres: