1972 American Motocross - Jim Gianatsis
Mark Blackwell, 1971 USA 500cc National Motocross Champion on Husqvarna CR 400.  Shown here winning at the 1972 Florida Winter-AMA Series with his #1 plate before going to Europe to race in the 500cc World Motocros Championship for Husky. An eye injury casued by a thrown stone would effectively end his racing career that season.

Mark Blackwell, 1971 USA 500cc National Motocross Champion on Husqvarna CR 400. Shown here winning at the 1972 Florida Winter-AMA Series with his #1 plate before going to Europe to race in the 500cc World Motocros Championship for Husky. An eye injury casued by a thrown stone would effectively end his racing career that season.