Historical clue formulations

• ___-Saint-Michel (French commune on a tidal island) — 2026-05-22
• ___ Blanc — 2024-12-25
• ___ Blanc — 2024-04-30
• ___-Saint-Michel, abbey site in France — 2024-03-09
• ___ Blanc — 2021-08-16
• French peak — 2021-03-30
• ___ Blanc, highest of the Alps — 2019-12-11
• ___ Blanc — 2019-05-07
• France's Pic de Rochebrune, e.g. — 2017-09-06
• High point of géographie — 2015-12-11
• Pyrénées peak — 2015-05-14
• State that borders three Can. provinces — 2015-05-03
• ___ Cervin (11-Down, to French speakers) — 2011-02-12
• Wyo. neighbor — 2008-09-05
• Something to scale, in Somme — 2005-02-19
• ___ Cenis Tunnel, in the Alps — 2004-08-12
• ___ Blanc — 2002-08-16
• Alpine sight — 1999-07-11
• Pyrénées peak — 1999-01-01
• _____ Blanc — 1994-08-01
• Blanc, for one — 1994-07-16