Famed national park drops 'environmental contaminant' ban ahead of America’s 250th birthday

Plenty of big celebrations are in the works for America's 250th birthday this summer — and fireworks are involved. 

On the eve of July 4th, Mount Rushmore will host a "spectacular Independence Day celebration in partnership with the State of South Dakota," according to the National Parks Service (NPS) website.

The evening will feature educational programs, patriotic tributes and musical entertainment to mark the occasion.

STEAK 'N SHAKE'S $2.50 STATUE OF LIBERTY MILKSHAKE GOES VIRAL...