What are steering marks primarily used for in navigation?

Steering marks are primarily used for identifying the highest visible points along an azimuth, often referred to as "range markers." These marks serve as visual references that help navigators maintain a specific course by aligning their vessel or vehicle with designated points on shore or other landmarks. By using these points, navigators can ensure they are traveling on the intended path over water or land, especially when visibility is limited or while navigating through difficult terrain.

The utilization of steering marks allows for consistent course management and helps prevent deviations that could lead to navigational errors. They provide critical guidance during navigation, particularly in scenarios where precise alignment with the intended route is essential. By focusing on the highest visible points, navigators can more accurately gauge their positioning relative to the desired azimuth, thus enhancing safety and efficiency in navigation.