The fort has been in virtually constant use since it was first formed as the "Sparta Manuever Tract" in 1909. It became "Camp McCoy" in 1926, and finally "Fort McCoy" in 1973. The base served as POW camp in World War Two. It currently serves as a Regional Training Center, and is used by 120,000 members of the military for training annually.
The fort is named after Robert Bruce McCoy, a retired major general, who first proposed the area as a training ground and bought part of the property now a part of the fort.
FortMcCoy encompasses 59,750 acres (24, 180 hectares) within what is known as the Driftless Area, part of the State left untouched by glaciers.
FortMcCoy began its efforts to protect the Karner blue nearly 2 years before the butterfly was listed as an endangered species in 1992.
FortMcCoy officials began coordinating with the Service on the impact of both military and non- military activities affecting the Karner blue in 1992, and in early 1994 the Service issued the post a no jeopardy Biological Opinion.
FortMcCoy was established in 1909 and presently has approximately 2,200 civilian employees and 300 active military personnel.
FortMcCoy's Directorate of Public Works (DPW) is the organization responsible for ensuring that all installation activities related to operations, training and construction comply with all applicable federal, state and local environmental and cultural resource laws and regulations.
FortMcCoy sends the PCB-containing equipment off-site where the fluid is drained and the casing is decontaminated.