Colorado Springs, home to five military installations, could face defense cuts by 2020.
Fort Carson could lose two-thirds of its 24,000 soldiers by 2020 under a doomsday plan to deal with budget cuts.
Characterized as a worst-case scenario, as many as 16,000 of the post's soldiers would be eliminated, according to documents released Thursday by the Pentagon.
The numbers were released as part of a required environmental assessment of troop reductions, which reflect cuts of 70,000 soldiers Army-wide. The Army says the cut would leave Fort Carson with 9,700 soldiers and civilian workers and take nearly $1 billion per year from the Pikes Peak region economy while dropping regional population by 40,000.
Local leaders said the possibility of huge cuts should spur Colorado's lobbying efforts to keep its military bases intact.