What is the method of locating one's position on a map by determining the grid azimuth to at least two well-defined locations?

The correct method for locating one's position on a map by determining the grid azimuth to at least two well-defined locations is known as resection. This technique involves taking bearings from your current location to two or more identifiable landmarks or points on a map. By accurately measuring these azimuths and plotting them back onto the map, you can pinpoint your location through the intersection of the lines created from the bearings to the landmarks.

Resection is particularly useful in navigation where the current position is unknown, but visible landmarks are identifiable on the map. This method relies heavily on both the accuracy of the bearing measurements and the clarity of the landmarks used for guidance. When these bearings are drawn, they form an intersection that indicates the current position.

Other methods mentioned, such as reposition, intersection, and triangulation, have different applications. For example, intersection is the process of determining a location by finding two or more points on a map based on their known coordinates. Triangulation, although it also deals with calculating position, typically involves the use of three known points to calculate a position, which is more complex compared to resection's reliance on just two known locations.