Haynesville is a town in northern Claiborne Parish, Louisiana, United States, located just south of the Arkansas border.

[9] This announcement began a new chapter in the development of the Hayneville Shale and hastened the activities of several other companies in the play.

Material on the history of Haynesville can be found at the Herbert S. Ford Memorial Museum located across from the Claiborne Parish Courthouse in Homer.

[16][17] In May 1999, the Haynesville Police Department discovered the skeletal remains of Shannon Capers, a 13-year-old girl who had been missing since March 8, 1997.

[20][21] The climate in this area is characterized by hot, humid summers and generally mild to cool winters.