Update 8 p.m.: Michael Dean Brown of Montana City has been found safe. The advisory has been canceled.
The Montana Department of Justice has issued a Missing/Endangered Person Advisory for Michael Dean Brown.
The MEPA was issued at the request of the Jefferson County Sheriff's Office.
Brown is 70 years old, white male, 5 foot 8 inches, and 180 pounds.
He was last seen in Ruby Mountain Road area, Wednesday morning, off McClellan Creek Road in Montana City.
Brown has had some recent health issues.
He was last seen wearing blue plaid shirt, jeans, sandy color Carhartt jacket, ball cap with Jefferson Co Rd dept on it, and glasses.
If you have any information on Michael Brown please call Jefferson County Sheriff at 406-225-4075 or 911.