Gilmer, Upshur County
An ancient Indian people, their tribal name unknown, located this rock suited to their need and caused it to serve them in preparing food. Without tools and with great patience and skill they fashioned these stone-age mortars in which to grind their corn. Their successors in the land -- the Texans of 1936 -- salute the industry and skill of these original inhabitants. Erected by the State of Texas - 1936