A LOOK BACK AT SOME OF THE ACTION IN THE ARIZONA-CALIFORNIA MOTOCROSS CHALLENGE RACE THAT WAS HELD IN 1976 AT BEELINE RACEWAY IN PHOENIX WITH RIDERS LIKE MARTY SMITH, TOMMY CROFT, WARREN REID, BOB HANNAH, CARLOS SERRANO AMONG OTHERS IN THE RACE AMA, BEELINE, BOB, BULTACO, DRAGWAY, HANNAH, HONDA, KAWASAKI, MAICO, MARTY, MOTOCROSS, PRO, SMITH, SUZUKI, TEAM, YAMAHA