President Donald Trump said Wednesday he'd try to mark this year's Independence Day with a fireworks display atop Mount Rushmore.

Brushing aside what he said were dubious environmental concerns that had previously prevented fireworks at the South Dakota landmark, Trump said he'd secured this year's show easily.

"What can burn? It's stone. Nobody knew why," Trump said of the concerns over the environment.

A recent US Geological Survey report cited past fireworks displays as the probable cause for elevated concentrations of contaminants in groundwater near the monument.

"I called up our people and in 15 minutes got it approved and we will have the first fireworks display at Mount Rushmore, and I will try and get out there if I can," Trump said on Thursday.

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