Bou Tcharafine, 8 km SE of Erfoud.
     2001  Klug, fig.2: Bou Tcharafine East, B unit Klug 2001.
     2002  Klug: 7, Fig.7: Bou Tcharafine West: N 31°22'58"; W 4°10'26" ;
                          Fig.8: Bou Tcharafine East: N 31°23'27": W 4°08'55".
     2002  Becker et al.: x = 616.6, y = 487,8.