LOCKHART MOUNTAIN. Lockhart Mountain stands eight miles northeast of Llano in northeastern Llano County (at 30°51' N, 98°37' W). At an elevation of 1,475 feet, the summit rises 410 feet above the nearby Little Llano River. The mountain was named for Sam Lockhart, first sheriff of Llano County, who was killed in office. It stands in an area of the Llano Basin characterized by flat to rolling to steep terrain, covered with soils that range from shallow and stony to sandy and clay loams. Vegetation consists primarily of open stands of live oak and mesquite.
Wilburn Oatman, Llano, Gem of the Hill Country: A History of Llano County (Hereford, Texas: Pioneer, 1970).