The trail along the northern flank of the Grenchenberg is actually already in the Envers de Montoz area. It runs close to the ridge, which is why I named it Grenchenberg Nordflanken Trail anyway. It begins moderately uphill on a tractor path. Approximately in the middle it mutates into a kind of single trail, which in turn leads slightly downwards. You can ride it very flowing at high speed. But don't leave the view to the north out of sight. You can see over the second and third Jura chain to the Black Forest. It is very hot here, especially in summer, the rocks give off a lot of warmth. Accordingly, the flora is also typically Jura and exudes an incredible calm. A nice trail that can also be ridden with biobikes. The end is incidentally uphill again, in the curve you drive over the ridge and then land behind the Obergrenchenberg restaurant.