If they don't transfer across the border between stages, I reckon than Col de Montgenèvre or Col de Larche would be the most likely ways for the peloton to enter France, with the high Alpine stages being in the last week (and they surely have to do that big Mercantour stage).I mostly wonder what they will do in the Alps. They'll probably enter the Alps already on stage 4. Will they then do a high mountain stage? Or just the easiest way crossing into France. And will they immidiately leave the Alps or do more mountain stages? And will they return doing a big Mercantour stage before the finish in Nice. This is a highly unusual route, so it will be very interesting to see what happens.
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