The Maine Warden Service is continuing to search for a 67-year-old Canadian man who has been missing for a week, Cpl. John McDonald said in a statement Monday evening.

Twenty game wardens and 28 volunteers from the Maine Association for Search and Rescue participated in the search for 67-year-old Renald Poulin of Quebec on Monday. Three warden service K-9 teams and three K-9 teams from the Maine Association of Search and Rescue Dogs also joined the search.

Wardens have been communicating directly with Poulin’s family and have learned valuable information related to his abilities and habits. Wardens confirmed that the inactive railroad systems are among Poulin’s favorite destinations.

The snow and wet, damp weather has made searching more difficult. Snow fell in the search area of Township 6 Range 13, located in Piscataquis County, for most of the day Monday. Approximately 3 to 4 inches of new snow accumulated and made searching a challenge. The terrain is also very rough and swampy, McDonald said.

The warden service will continue to search nearby wooded areas, travel ways and waterway shorelines Tuesday. The Maine Warden Service Dive Team may deploy Tuesday near Umbazooksus Dam, where Poulin’s abandoned vehicle was found. Agencies assisting in Monday’s search include the Maine Forest Service, U.S. Border Patrol, Unity College Search and Rescue Team, Baxter State Park Rangers, Mid-Maine Search and Rescue, Mount Desert Island Search and Rescue, Pinetree Search and Rescue and the Maine Association of Search and Rescue Dogs.

Watch for updates.