AT THE END OF A CROSS COUNTRY FLIGHT, APPROACHING THE AIRPORT, THE PILOT WAS CLEARED TO LAND AND CAUTIONED OF WAKE TURBULENCE FROM A LARGE AIRPLANE LANDING AHEAD OF THE ACCIDENT AIRPLANE. THE PILOT WAS INSTRUCTED TO KEEP A TIGHT PATTERN AND FOLLOW THE LARGE AIRPLANE. WHILE ON SHORT FINAL THE ACCIDENT AIRPLANE ENCOUNTERED THE WAKE TURBULENCE OF THE LARGE AIRPLANE. THE PILOT WAS UNABLE TO MAINTAIN CONTROL AND COLLIDED WITH THE TERRAIN SHORT OF THE RUNWAY.