The most northern of the Grand Slams starts from Williamstown Oval .
The most northern of the Grand Slams incorporates the townships of Mt Pleasant , Angaston , Tanunda , Lyndoch , Gawler , Kersbrook .
The most northern of the Grand Slams starts from Williamstown Oval and incorporates the townships of Mt Pleasant , Angaston , Tanunda , Lyndoch , Gawler , Kersbrook .