From the west of Paris by car :

• Use the interstate (Autoroute: A10) from Paris south 
• At the junction, change to the Autoroute A11 toward Chartres
• Exit at Thivars towards Châteaudun (Nationale: N10)
• Take the Nationale N 10 to Flacey 
• In Flacey take the Départementale D110 to Moresville

• Exit city at Porte d'Orléans, direction Périphérique Est
• Take Autoroute A 6, towards Lyon
• At Wissous, change to Autoroute A10, towards Nantes-Bordeaux-Palaiseau
• At Ablis, continue towards Chartres-Le Mans, and to Thivars
• Exit at Thivars towards Chateaudun (Nationale: N10)
• Take the Nationale N 10 to Flacey
• In Flacey take the Départementale D110 to Moresville.

Road map from PARIS
Prepare a City-to-City Itinerary with MICHELIN