What part of the Assabet River National Wildlife Refuge was formerly used as a dumping ground by the Natick Laboratories until the 1980s?
Assabet River National Wildlife Refuge Assabet River National Wildlife Refuge, (formerly referred to as the U.S. Army's Fort Devens-Sudbury Training Annex), is a 2230 acre protected National Wildlife Refuge located approximately 25 mi west of Boston, and 4 mi west of the Eastern Massachusetts National Wildlife Refuge Complex Headquarters, along the Assabet River. It is located in portions of the Towns of Hudson, Maynard, Stow and Sudbury. The Assabet River National Wildlife Refuge consists of two separate pieces of land. The larger northern section is just north of Hudson Road, extending north to the Assabet River. The southern section is located to the south of Hudson Road. There is a visitor center located in the northern section, on Winterberry Way.
Thelon Wildlife Sanctuary The Thelon Wildlife Sanctuary, at 52000 km2 , over twice the area of Belgium, is the largest wildlife refuge in Canada. It is located in northern Canada's Arctic region, north of the tree line, straddling the Northwest Territories and Nunavut, halfway between Baker Lake and Yellowknife, and bordered on the north between the Baillie River on the west and the Consul River at the east by the Back River. It is the namesake of the Thelon River, whose river valley is resplendent with boreal forest biological diversity, hence its identification as a "Biological Site of Universal Importance" by the International Biological Program (IBP) in the 1960s.