I've been to both places, but not in France.

https://en.wikipedia.org/wiki/Dizy,_Marne

"Dizy is situated in the Marne valley."

"The Champagne vineyards producing the world-famous sparkling wine are located within Marne."

https://en.wikipedia.org/wiki/Bouzy

"The village's vineyards are located in the Montagne de Reims subregion of Champagne."