Cross Shot 2 : A method of sighting in which intersecting lines of sight from two different points are drawn to the same object; it is frequently used to determine the location of a wildland fire from lookouts
Ralph W. Burklin & Robert G. Purington, Fire Terms: A Guide to Their Meaning and Use, National Protection Association, Boston, MA 1980 USA. (Guide: Meaning and Use, Nat Prot Association Fr Srvc - Amer) {457}