Weyerhaeuser (pronounced "Warehouser"[3]) is one of the world's largest private owners of timberlands. It owns or controls more than 6 million acres of timberlands, primarily in the U.S., and manages another 14 million acres under long-term licenses in Canada. The company also manufactures wood and cellulose fiber products.
The Au Sable River International Canoe Marathon is an annual 120 mi (193 km) canoe race in Michigan from Grayling to Oscoda. It first ran in 1947, is perhaps the oldest marathon canoe race in the United States, and is the longest, non-stop, canoe-only race in North America. The race has been billed as "The World's Toughest Spectator Race" as many of the spectators follow the racers overnight down the full 120 miles (190 km) to the finish.[1]