Horse detachment takes part in TriCounty Fair in Bishop by Aerotech staff and wire reports • September 8, 2021 1:20 pm - Updated September 30, 2021 10:37 am (Army photographs) The 11th ACR Horse Detachment took part in the TriCounty Fair in Bishop, Calif., over the Labor Day weekend, Sept. 3-6. The Horse Detachment had the honor of leading the Bishop Parade and presenting the colors prior to the nightly events. Tags: 11th Armored Cavalry Horse Detachment