Fort Elliott functioned as a frontier U.S. Army post established in 1875 on a plateau above Sweetwater Creek in the eastern Texas Panhandle, built on the orders of Colonel Nelson A. Miles as an advance supply and surveillance post in the aftermath of the Red River War and the attack at Adobe Walls. Troops stationed there patrolled the Panhandle to keep buffalo hunters and other parties from provoking conflict, pursued Native bands attempting to leave nearby reservations in Indian Territory, and later shifted toward policing the emerging range-cattle industry, keeping stock off reservation land and overseeing herds driven north through Indian Territory. The post's presence anchored the nearby civilian settlement of Sweetwater, a buffalo-hide trading camp about a mile away that grew into the town of Mobeetie, reaching a population of roughly 150 by 1880 as fort employment and army procurement fueled local trade and construction. The fort's protective umbrella helped open the eastern Panhandle to permanent ranching and settlement, with cattle herds in the region growing to nearly 300,000 head by 1880. Fort Elliott was closed in October 1890 following a typhoid outbreak, and little of its original structures survive today. The site is commemorated by a historical marker near Mobeetie, and area history, including the fort's role and the Buffalo Soldiers who served there, is preserved at the Old Mobeetie Jail Museum in the nearby community.