1. A computer-implemented method for forming an aerially-viewable graphic on real property, the method comprising: defining the graphic to be formed on the real property; scaling the graphic, or a portion thereof, to a designated portion of the real property; mapping the scaled graphic, or the portion thereof, to the designated portion of the real property, wherein mapping the scaled graphic comprises defining a plurality of points on the designated portion of the real property to be altered to form the graphic; inputting the mapped graphic, or a portion thereof, into a physical, non-transient memory device operatively associated with a navigation system, the navigation system comprising a part of, and providing inputs to, a control system for at least one computer-controlled mechanism, the control system being configured to selectively actuate at least one computer-controlled mechanism to cause the at least one computer-controlled mechanism to actuate and alter only the plurality of points on the designated portion of the real property or sub-portion thereof; traversing the designated portion of the real property with the at least one computer-controlled mechanism; and controlling the at least one computer-controlled mechanism, during the traversing of the designated portion of the real property, to selectively alter only the plurality of points on the designated portion of the real property, or sub-portion thereof, to form the graphic, or the portion thereof, on the designated portion of the real property, either contemporaneously with the act of altering or at a time subsequent thereto.