Question: Assabet River National Wildlife Refuge, was formerly referred to as the U.S. Army's, former annex of Fort Devens that was operational from 1942 to the 1990s, was called?
Context: The Fort Devens-Sudbury Training Annex was a former annex of Fort Devens that was operational from 1942 to the 1990s.  It originally opened as an ammunition dump for the base, and old railroad lines and bunkers can still be seen in the area.  It then functioned as a dumping ground for the Natick Laboratories until the 1980s.  In the 1990s, the site was cleaned up and turned into the Assabet River National Wildlife Refuge. The White River National Wildlife Refuge (officially Dale Bumpers White River National Wildlife Refuge) is a 160756 acre wildlife refuge located in Desha, Monroe, Phillips, and Arkansas counties in the U.S. state of Arkansas.  The refuge is managed by the United States Fish and Wildlife Service.  White River NWR borders on Cache River National Wildlife Refuge at its northern boundary. Audubon National Wildlife Refuge is a 14739 acre National Wildlife Refuge in the U.S. state of North Dakota.  The refuge is managed by the U.S. Fish and Wildlife Service and is the centerpiece of the Audubon National Wildlife Refuge Complex, which includes numerous other refuges in the region.  Originally designated as the Snake Creek National Wildlife Refuge in 1955, the refuge was renamed in 1967 in honor of the artist and naturalist John James Audubon.  Most of the refuge area is a lake known as Audubon Lake which is managed by the U.S. Army Corps of Engineers. Medicine Lake National Wildlife Refuge is a 31533 acre National Wildlife Refuge located in the northeastern region of the U.S. state of Montana.  The refuge is part of the Medicine Lake National Wildlife Refuge Complex which also includes the Northeast Montana Wetland Management District (WMD) and Lamesteer National Wildlife Refuge.  Medicine Lake is from the Assiniboine description of the lake, "Bda wauka" (medicine water).  The refuge was established in 1935 to protect habitat for various wildlife and especially migratory birds.  The refuge is managed by the U.S. Fish and Wildlife Service, an agency of the U.S. Department of the Interior. The Occoquan Bay National Wildlife Refuge is a National Wildlife Refuge located where the Occoquan River meets the Potomac River in Woodbridge, Virginia, United States.  The 644 acre site, about half of which is wetlands, was a popular tourist spot known as Dawson Beach until the 1940s, after which it was used for military research by the U.S. Army's Harry Diamond Laboratories from the 1960s to the 1990s.  When the land was purchased from the military, it was temporarily called the Marumsco National Wildlife Refuge.  The refuge was formally established and renamed in 1998, and is now managed by the United States Fish and Wildlife Service as part of the Potomac River National Wildlife Refuge Complex. Fort Niobrara National Wildlife Refuge is located in the U.S. state of Nebraska and includes 19,131 acres (77.42 km).  The refuge borders the Niobrara National Scenic River on the west and is managed by the U.S. Fish and Wildlife Service.  From 1879 to 1906, the Fort Niobrara Military Reservation was located on what later became refuge lands to house a garrison of the U.S. Cavalry.  After the fort was closed, the effort to preserve the region as a wildlife refuge culminated in the creation of the refuge on January 11, 1912.  The refuge also manages Valentine and John and Louise Seier National Wildlife Refuges as parts of the Fort Niobrara National Wildlife Refuge Complex. The Desert National Wildlife Refuge is a protected wildlife refuge, administered by the U.S. Fish and Wildlife Service, located north of Las Vegas, Nevada, in northwestern Clark and southwestern Lincoln counties, with much of its land area lying within the southeastern section of the Nevada Test and Training Range.  The Desert NWR, created on May 20, 1936, is the largest wildlife refuge in the lower 48 states of the United States, encompassing 1.615 e6acre of the Mojave Desert in the southern part of Nevada.  This Range is part of the larger Desert National Wildlife Refuge Complex, which includes the Ash Meadows National Wildlife Refuge, the Moapa Valley National Wildlife Refuge, and the Pahranagat National Wildlife Refuge. The Pahranagat National Wildlife Refuge is a protected wildlife refuge, located at the southern end of the Pahranagat Valley and administered by the U.S. Fish and Wildlife Service.  It is situated 90 mi north of Las Vegas, Nevada in Lincoln County, Nevada.  The 5380 acre refuge was created on August 16, 1963 and is part of the larger Desert National Wildlife Refuge Complex, which also includes the Ash Meadows National Wildlife Refuge, the Desert National Wildlife Refuge, and the Moapa Valley 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. Thacher Island National Wildlife Refuge is a National Wildlife Refuge located on Thacher Island near Rockport, Massachusetts.  It is managed under the Parker River National Wildlife Refuge.  The U.S. Fish and Wildlife Service currently does not offer any interpretive facilities or programs at Thacher Island Refuge.  A foot trail meanders through shrub/thicket, rocky outcrop and other island habitats and affords opportunities to observe and/or photograph birds and other island and offshore wildlife.
Answer: Fort Devens-Sudbury Training Annex