This mill does have no wings anymore. No visits possible, without an appointment.
approach:
A46 until the end, then turn right direction Heinsberg (B221). Exit Schleiden / Heinsberg (Stadtmitte) and continue in direction Saefflen, through Braunsrath then still 5 km. At the crossing left towards Bocket. Look for the signs.
Form Geilenkirchen follow B221 direction Heinsberg.