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The answer is Col de la Madeleine.
Details of 4 routes: https://www.cycling-challenge.com/video-les-lacets-de-montvernier-and-col-de-la-madeleine-via-col-du-chaussy/
a) North side
b) 2 paved routes from south (note, the TdF is scheduled to take the less famous option)
c) My favourite via Les Lacets de Montvernier, Col du Chaussy, then gravel to Madeleine:
Details of 4 routes: https://www.cycling-challenge.com/video-les-lacets-de-montvernier-and-col-de-la-madeleine-via-col-du-chaussy/
a) North side
b) 2 paved routes from south (note, the TdF is scheduled to take the less famous option)
c) My favourite via Les Lacets de Montvernier, Col du Chaussy, then gravel to Madeleine:
Other ideas:
a) If climbing the north side of Madeleine, there is a terrific there/back up to Le Logis des Fées along the way:
https://www.cycling-challenge.com/col-de-la-madeleine-and-le-logis-des-fees/
b) Here's an old ride up the south side with a detour to Lac de la Grande Lechère: https://www.cycling-challenge.com/col-de-la-madeleine-a-third-way-up/
a) If climbing the north side of Madeleine, there is a terrific there/back up to Le Logis des Fées along the way:
https://www.cycling-challenge.com/col-de-la-madeleine-and-le-logis-des-fees/
b) Here's an old ride up the south side with a detour to Lac de la Grande Lechère: https://www.cycling-challenge.com/col-de-la-madeleine-a-third-way-up/
