Peaceful downhill hike through the Montfaucon valley to the feudal castle perched on its rocky outcrop. Then from a lost fountain to a forgotten fountain, you will go through and, no doubt, appreciate the wild freshness of the Nacra steephead valley.
A stroll along the ridge separating the Loue Valley and that of the river Doubs and then along the banks of the Doubs with a panoramic view of the Château de Montferrand ruins.
Another circular walk around Lizine taking you to beautiful viewpoints and past the limestone pavement.
The Loue Spring (tributary of the Doubs) is a resurgence of the Doubs. After journeying underground, it comes out into the open air at the bottom of a 'reculée' (steephead valley), at the foot of the rock face. It has cut deep into the limestone of the Jura massif, creating an enclosed valley, which I invite you to gaze at and contemplate from the many lookout points. You will also go down to the bottom of the gorge to discover this impressive resurgence.
From the old village of Mouthier, you will climb up to the tourism hotspot Franche-Comté , one of the major natural sites of Doubs: the Source of the Loue and up the Nouailles Gorges. You will overlook its emerald green waters interspersed with rapids and waterfalls, climbing and a scenic, physically demanding trail, perhaps surprising along the way some old forgers printing counterfeit money in the shade of caves and returning by the crest of cliffs and lookout points overlooking the valley.
This hike allows you to discover the geological and karstic curiosities which are the source du Lison (the Lison spring), the creux Billard (the Billard hollow) and the grotte Sarrazine (the Sarrazine cave). The great advantage of this route is that overlooks the creux Billard and offers natural uncovered lookout points from the upper plateau.
Montfaucon: Dhuit Fountain 
