The NWT coroner's office has identified Sgt Jeff Lindsay as the man killed in a snowmobile accident outside Yellowknife.
Lindsay, a member of 1 Canadian Ranger Patrol group, passed away after he was thrown from his sled at Reid Lake on Saturday.
RCMP earlier said Jeff's snowmobile had hit a rock covered in snow.
Paying tribute to Jeff, Captain Rachael Thompson told Cabin Radio: "He was an outstanding member of our unit and he'll be deeply missed."
Friends and family posting tributes to Jeff called him a "great soldier" and "great mentor."
His military career lasted almost three decades. Originally from Brantford, Ontario, he moved to Yellowknife in 2015 to become a ranger instructor working in northern communities.
For the past year, he had been based in Yellowknife with responsibility for organizing and deploying other instructors.
Jeff leaves behind his wife, Nadia, and two young children.
"Our deepest condolences go out to the family of Sgt Lindsay, and our thoughts and hearts are with them," said Thompson on behalf of her unit.