The RM of Big Stick No. 141 incorporated as a rural municipality on December 11, 1911. The RM takes its name from the alkali Bigstick Lake within its boundaries, which was named after the Big Stick Trail between Maple Creek and the South Saskatchewan River – notable for a large, solitary tree along its route. A Big Stick Lake post office also operated at SE-27-14-26-W3 from 1911 to 1925.
