Which method allows you to locate an unknown point using at least two known positions on the ground?

The method that allows you to locate an unknown point using at least two known positions on the ground is intersection. Intersection involves using the known locations of two or more points, along with their bearings or directions toward the unknown point, to triangulate its exact location. By drawing lines from each known point in the direction of the unknown point, these lines will eventually intersect at the sought-after location.

This technique is commonly used in navigation and mapping to accurately determine positions and is crucial in security operations where exact locations are often necessary for evaluating threats or implementing tactical decisions. The process relies heavily on the precision of the measurements taken from the known positions to successfully pinpoint the unknown location.

Other methods, while useful in their own right, serve different purposes or require different types of information. Resection, for instance, is used to determine one's own position based on known points, rather than finding an unknown point like in intersection. Azimuth determination focuses on measuring angles to navigate towards a target, and grid navigation pertains to moving within a defined coordinate system rather than directly locating an unknown position from known landmarks.