Fort Gates, Military fortification in Texas, United States

Fort Gates was a United States Army post on the north bank of the Leon River, about five miles east of present-day Gatesville, Texas. Established in 1849, it comprised four officers' quarters, two company quarters, three laundresses' quarters, a hospital, a stable, a forage house, two storehouses, a guardhouse, a bakehouse, and a blacksmith shop.

Captain William Reading Montgomery founded the fort in 1849 as one of seven Army posts set up after the Mexican War. It was placed on this stretch of the Leon River to protect settlers pushing further into West Texas.

The fort's name honors Brevet Major Collinson Reed Gates of New York, cited for his conduct at Palo Alto and Resaca de la Palma. Lieutenant George Pickett, later known for Pickett's Charge at Gettysburg, was stationed here in 1850–51. The post was abandoned in March 1852.

The grounds can be explored on foot and are largely open to view. There is little natural shade, so bringing water and sun protection makes the visit more comfortable.

Lieutenant George Pickett, later known for "Pickett's Charge" at Gettysburg, was stationed at Fort Gates in 1850–51. The post was abandoned in March 1852, only about two and a half years after it was founded. In April 1851 it held 256 enlisted men and forty-five officers, the most reported in a single month.