From the centre of Roanne :
third set of lights left after the bridge over the Loire.

From Lyon, St Etienne :
take the RN7, exit « Le Coteau » no. 68.

From Moulins :
N7, at the Carrefour roundabout, take RN7 towards Lyon, St Etienne, Clermont-Ferrand, then 3rd exit no. 7 « Le Coteau ».