Chalk Mountain is a small unincorporated community in Erath County, Texas, United States.

It lies along U.S. Route 67 near the Somervell County line, approximately 12 miles southwest of Glen Rose.

[2] In May 2009 Manfred Cuntz, a professor of physics and the director of the astronomy program at the University of Texas at Arlington, was called in to investigate a supposed meteorite impact.

Arthur Ehlmann, a professor of geology at the Texas Christian University and an expert in meteoric research, chipped off a piece of the stone and pronounced it to be made of limestone, which was plentiful in the area.

Local newspapers, TV and the Texas Mutual UFO network sensationalized the story trying to explain how it could be a meteorite despite its composition, lack of burning as it would have had if it zipped through the atmosphere.