Authorities in the northwestern Lower Peninsula say a 52-year-old suburban Detroit man was killed when his speeding snowmobile hit a tree.

The Kalkaska County Sheriff Department says the fatal crash happened Saturday near Camp Grayling in Bear Lake Township.

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Mlive.com reports that authorities identify the victim as Michael Moran of Livonia. They say he apparently was climbing a hill at a high rate of speed when he hit the tree.

He was declared dead at the scene.