Which of the following is NOT a navigation method?

Mapping by Numbers is not recognized as a standard navigation method. In navigational practice, techniques like Dead Reckoning, Moving by Terrain Association, and Combination of Techniques are well-established methodologies utilized by military and civilian navigators alike. Dead Reckoning, for instance, involves calculating one's current position based on a previously determined position, accounting for time, speed, and direction traveled. Moving by Terrain Association focuses on navigating by recognizing and interpreting identified features and landmarks in the environment. A Combination of Techniques suggests employing various methods to enhance navigational accuracy and adaptability, catering to different terrains and circumstances.

Mapping by Numbers, however, does not hold relevance in the context of traditional navigation methods, which rely on various skills, tools, and principles to determine and advise on positioning and route selection. Thus, this term is not applicable within the scope of conventional navigation practices.