1. A method, comprising: A) performing a locate operation of at least one underground facility in a dig area that is planned to be excavated or disturbed during excavation activities by applying to ground, pavement or other surface in the dig area at least one physical colored marker to indicate a presence or an absence of the at least one underground facility below the ground, pavement or other surface in the dig area; B) displaying on a display device at least one digital image of a geographic area comprising the dig area; C) adding to the displayed digital image at least one electronic colored marker corresponding to the at least one physical colored marker applied to the ground, pavement or other surface in the dig area so as to generate a marked-up image including the at least one electronic colored marker; and D) electronically transmitting and/or electronically storing information relating to the marked-up image to document the locate operation performed in A).