CALUMET, Mich. (WLUC) – The organizers of the Copper Dog 150 are preparing for the ‘kick-off’ of the event’s season, its annual free dog sled rides for kids. The rides are held at Agassiz Park in Calumet. Because of warmer weather last year, the rides were delayed until January. Tom Bauer of the Otter River Sled Dog Training Center and Wilderness Adventures will be giving rides. The Michigan Tech University Mushing Club will also be there to help out.