How to reach the Ecole des Mines at Fontainebleau from Charles de Gaulle airport
From Charles de Gaulle airport to Gare de Lyon (45mn):
Take the RER B (express railroad) at Charles de Gaulle to Paris. Get off at "Chatelet les Halles" and then take the connection to RER A on the other side of the same platform. The next station is Gare de Lyon.
From Gare de Lyon to Fontainebleau (45mn):
At Gare de Lyon take a train that stops at Fontainebleau/Avon station.
From Fontainebleau/Avon train station to the Ecole des Mines (20mn):
Go to the front of the train station via the pedestrian tunnel. Take one of the buses "Les Cars Verts" to the "Château". You can buy directly the ticket on the bus (about 1,70 euros ; it is preferable to have some change). Get off at "La Poste" stop, near the "Château". Then refer to the map in order to reach the CMM or your hotel (La Chancellerie : (1) ; Ibis : (2) ).
Map of Fontainebleau city center
(1) : Hôtel la Chancellerie
(2) : Hôtel Ibis