. July 28th-(Wednesday) Strinden Farm West of Mandan, 2420 Co Rd 139a, Mandan. Take the Sunset Drive Exit 152 north to the Old Red Trail. Take Old Red Trail west and continue driving you will leave the residential area. Drive past the 56th Ave intersection. In a very short distance you will see a road to the left (south) that goes through a tunnel under the interstate. The farm is on the other end of the tunnel.