The Dil-Dil Plateau is a small lava plateau on the west side of the upper valley of Big Creek in the southern Chilcotin District of the Central Interior of British Columbia. The plateau is a shelf-like extension of the subrange of the Chilcotin Ranges containing Taseko Mountain and Mount Vic to the west, and is roughly rectangular in shape, and of c.25âÂÂ30 km<sup>2</sup> in area and forming a transition between the range and the Chilcotin Plateau at 2000m-2300m.
The Dil-Dil Plateau consists mostly of flat-lying basaltic lava flows ranging from Miocene to Pliocene age. These basalts are part of a larger volcanic formation known as the Chilcotin Group.