Spectacular FIREWORKS SHOW MATANUSKA VALLEY FEDERAL CREDIT UNION NORTHERN ASPHALT SATURDAY, AUGUST 17TH 10:30/DARK MILE 57 PARKS HWY. Spectacular FIREWORKS SHOW MATANUSKA VALLEY FEDERAL CREDIT UNION NORTHERN ASPHALT SATURDAY , AUGUST 17TH 10 : 30 / DARK MILE 57 PARKS HWY .