What does the term "handrails" refer to in effective land navigation?

In the context of effective land navigation, "handrails" refer to natural or man-made features that can be utilized as navigational references. These features serve as guides that help navigators maintain their orientation and stay on course during their journey. Handrails can include rivers, roads, ridges, and other prominent landmarks that are easily recognizable on a map and in the terrain. By following these distinct features, a navigator can ensure they are traveling in the desired direction while reducing the chance of getting lost. This concept is particularly valuable in outdoor navigation, where visibility can be challenging, and using identifiable landmarks can significantly enhance the accuracy and efficiency of navigation efforts.