Officials say the snowmobiler had a broken leg and was in the process of being airlifted to a Wasatch Front hospital.
The avalanche was triggered in the Monte Cristo mountain range area near the Cache-Weber-Rich county lines.
The avalanche happened at Whiskey Hill, the same location where a man was killed in 2005.
Weber County officials were involved in the rescue.
One official said the slide was and estimated 200 feet across and traveled 1/2 mile down the mountain.
According to one emergency responder, the man in his 50s was trying to outrun the avalanche on his snowmobile when he bailed from the machine to avoid hitting a tree.
The man was reportedly buried up to his visor and suffered a broken femur as his friends dug him out and called for help.
Utah Avalanche Center officials say avalanche conditions are very dangerous.
A skier was killed in an avalanche on Thursday near the Canyons ski resort.
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