FILE - In an April 5, 2010 file photo, West Virginia State Police direct traffic at the entrance to Massey Energy's Upper Big Branch Coal Mine in Montcoal, W.Va. An explosion fueled by methane and coal dust ripped through the seven miles of underground corridors at the mine on April 5, 2010 killing 29 men. (AP Photo/Jeff Gentner, File)
WHITESVILLE, W.Va. (AP) - Employees at a memorial to Upper Big Branch miners killed two years ago are asking visitors to refrain from taking coal from the site in Whitesville.
A posting on the memorial's Facebook website says coal is disappearing from the monument's base.
Media outlets report organizers are asking the public to preserve the site for future generations.
The memorial was dedicated two weeks ago to the 29 men killed in the April 2010 explosion.