Where is P04 "Bisbee Mun"

Im trying to add an Exclude area to alter `P04 Bisbee Mun` using Sbuilder, in order to do this I need to find the where the original Default file resides, does anyone know where to find it in the scenery files of FS9 I know its in Arizona but where in the scenery files is located, id be grateful of any help you can give me