1. A method for generating an electronic manifest of a locate operation performed by a locate technician, the method comprising: A) electronically receiving a digital image of a geographic area comprising a dig area, at least a portion of the received digital image being displayed on a display device; B) generating a marked-up digital image by adding to the displayed digital image at least one digital representation of at least one physical locate mark applied by the locate technician during the locate operation, the locate operation comprising identifying, using the at the least one physical locate mark, a presence or an absence of at least one underground facility within the dig area, wherein at least a portion of the dig area is planned to be excavated or disturbed during excavation activities; B1) converting the at least one digital representation to GPS coordinates; and C) electronically transmitting and/or electronically storing information relating to the marked-up digital image so as to generate the electronic manifest of the locate operation, wherein the information includes: a timestamp indicative of when the locate operation occurred; and at least one of i) the marked-up digital image and ii) the GPS coordinates.