UPDATE: OPP have found the missing 87-year-old from Springwater.
OPP say they are exhausting all efforts to find 87-year-old Harvey Doherty.
He was last seen on Thursday just before 4 p.m., when he took his two dogs for a walk on the trails behind his home.
The trail system is located in the area of County Road 27 north of Highway 26 in Midhurst.
Doherty was wearing a blue sweater, black pants, hiking boots, and he is approximately 6 feet tall, with grey hair.
Police say the Emergency Response Team, Canine Unit and Aviation are assisting with the search.
Volunteers from the Georgian Bay Volunteer Search and Rescue are also involved in looking for Doherty. A command post has been set up at the museum on Highway 26 in Midhurst.
Police say Doherty did not have his wallet with him and left his cell phone at home. Both of his dogs have returned home.
If you have had any contact with Doherty or have any information regarding his whereabouts please contact Huronia West OPP at 1-888-310-1112.
Banner image provided by OPP