This story is but one version of several that have made the e-mail rounds in recent months. The Urban Legends section of About.com: Work Moose in Harness (Moose Logging) does a thorough job of debunking these stories. The photo, the basis of the tale, is a composite of different images. This is revealed by examining features like the Chevaux d'Abitibi patch on the man's jacket, the harness strap that leads nowhere, and the mirror-image woodpiles. You can read more about the details and alternate stories in the post.
A quick online search shows that this story is currently circulating around websites and blogs, too. That puzzles me since it is so easy to check and find that it is a bogus story. Maybe everyone is as fascinated as I am by moose -- I was thrilled to glimpse one in the wild one time and Moose Tracks is my favorite ice cream flavor.
Related post: Twin Baby Moose Play in Water Sprinkler
More about moose, authoritative text and 80 stunning photographs: Moose: Giants of the Northern Forest