From La Loupe, take the D7928 towards Belhomert-Guehouville. Then take the D941 towards Senonches. Park at Rond Bergon.
(S/E) Cross the D941 with care and follow the Route Forestière de La Ferrière south-west. Turn left and walk for about 50 metres until you reach the crossroads.
(1) Turn left at a right angle onto theGR®® de Pays Vallée de l’Eure. Go straight ahead at the crossroads. Continue for a further 600 metres, then cross the D941 carefully once more to enter the forest until you reach the main stretch of the Route de la Mare Ronde.
(2) Turn left. After 400 metres, turn onto the track on the right (marker 239). Head towards the edge of the forest until you reach a junction.
(3) Turn left and, at the next track, turn right. Follow the path to the left for about 700 m until you reach the junction with the GRP®®.
(4) Follow the GRP®® to the right and head for the junction of the circular route
(5) Turn right and head down towards the pond, go round it and head back up the same way you came. After coming back up from the pond, take the path on the right as far as the last houses on the D928.
(6) Leave theGRP®® behind, turn left and take the path that heads to the right, going round a house. Cross the field between the fences and turn left until you reach a track.
(7) Follow the path to the crossroads.
(8) Turn right down the lane to reach another crossroads.
(9) Turn left and continue to the end of the lane. Turn right and head downhill to Rond Fortin.
(10) Follow the Route de la Ferrière to reach the Rond Bergon (S/E).