Gravel
Stage 6: Sterrato stage
Viterbo → Siena
Wed, May 13, 2026181 km 2,400 m climbing
Stage route Sterrato stage
ViterboStart
181 km
Siena Finish
Verified route and terrain.
A 181 km stage from Viterbo to Siena featuring sterrato — Tuscan-style white roads that turn the peloton on its head.
This stage is labeled "Sterrato stage" — one of the marked days on the route.