(Bixby, MO) A worker with the Doe Run Company, Hagen Barton of Viburnum, is dead after he was discovered unresponsive along a haul road underground at the Casteel Mine near Bixby Tuesday, December 6th. A press release form Doe Run Company officials shows emergency rescue personnel were immediately notified and arrived on scene where Barton was pronounced dead. A moment of silence was held at the Viburnum and Salem basketball game this week in honor of Barton. The Mine Safety and Health Administration, and local authorities, are investigating the incident. The Doe Run Company's Vice President of the SEMO Mining and Milling Division, Brian Mangogna, says “Barton was a valued member of the Casteel Mine team, a resident of Viburnum, a father, family member, and friend to many in our community. He will be greatly missed.”