Some Prince William County residents and lawmakers are upset that preservation efforts at Manassas National Battlefield Park are leading to the destruction of many trees.

Authorities at the Civil War battlefield have cut down 130 acres of trees in a section of the park named Deep Cut.

Park Superintendent Ed Clark says they need clear vistas to help visitors understand and appreciate the historical site. He says they're working to preserve the park's viewsheds to help show why the battle played out the way it did.

But county Supervisor Wally Covington says he's not satisfied with efforts to preserve trees. He's asking for a tree count for the entire county.