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Mysterious biplane reported releasing chemicals over Grand Lake

Investigators determined it was a stunt plane releasing harmless smoke

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Was it a government conspiracy or was a mysterious biplane in the area on Sunday searching for Cary Grant? (Get the reference to “North by Northwest”?)

It was neither.

The Grand County Sheriff’s Office responded to a report of a biplane releasing chemicals over Grand Lake on Sunday, though residents have no cause for alarm, Lt. Dan Mayer of the Grand County Sheriff’s Office said.

The plane was reportedly practicing aerial tricks over the lake, occasionally releasing non-toxic smoke similar to that seen in an air show.

There were no dangerous chemicals released, according to Mayer.

“It turns out it was just a biplane doing loops and the pilot would turn on his smoke every now and then,” said Mayer. “We ended up finding several people that saw it, but only one person felt they needed to call it in.”

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