The pass road runs on side road 152a from Le Pont (1008 m a.s.l.), a village in the municipality of L'Abbaye, northeast along lake Brenet, over the Col du Mont d'Orzeires, past Pierre Punex (1061 m a.s.l.) and continues to Chalêt du Mont d'Orzeires (1029 m a.s.l.), where the Juraparc animal park is located. After a few bends, the road runs from a height of 950 m a.s.l. to the east to La Dernier (764 m a.s.l.) and Vallorbe (749 m a.s.l.). The pass connects the Valle de Joux through the narrows between the Risoux range and the Dent de Vaulion (1483 m a.s.l.) with main road 9 near Vallorbe.