From the municipal office in Weißbriach - parking possibility - we first drive along the B87 Weißensee Bundesstraße towards Kreuzberg. After the place-name sign we turn right after 200 m onto the "Alte Kreuzbergstraße". The cart or gravel path is uphill past the "Mossmüller" to the Kreuzberg pass. Now you can either follow the route back to Weißbriach or you can take the B87 Weißensee Bundesstraße back to Weißbriach.
Another possibility would be to continue the journey to Techendorf am Weißensee.