Motorists traveling along State Highway 104 north of Tucumcari, New Mexico, may notice a sign indicating the location of Fort Bascom. The post itself is long gone, its adobe walls washed away. In 1863, the United States, fearing a second Confederate invasion of New Mexico Territory from Texas, built Fort Bascom. Until 1874, the troops stationed at this site on the Eroded Plains along the Canadian River defended Hispanic and Anglo-American settlements in eastern New Mexico and far western Texas against Comanches and other Southern Plains Indians.

In Fort Bascom, James...