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The spot is at the [https://goo.gl/maps/zzamY petrol station 47.22979796851974, 6.037287712097168], and never takes more than 30 min (can be 4...). For this you have to walk out of the centre to the crossing called RIvotte Rivotte (near the tunnel under the citadellecitadel), then follow the road in direction of pontarlierPontarlier. Next good point is the circle [https://goo.gl/maps/Qlsi6 round-about] close to [[Valdahon 47.15773897397862]], 6.252250671386719 and don't take a ride which go goes closer than this point.