You find the lines of latitude and longitude and find the place that they intersect, which is your location.
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Use the latitude and longitude lines on the map along with the coordinates. Find where the two coordinates meet and that will be the location you are looking for.
The sky. Astronomers use right ascension and declination as coordinates for locating stars, rather than latitude and longitude.
GPS receivers do not 'use' elevation for anything. They use the signals from several satellites simultaneously to calculate the latitude, longitude, and elevation of the receiver's location. It takes a minimum of three satellites to calculate the latitude and longitude, a minimum of four satellites to calculate the latitude, longitude, and elevation, if more satellites can be found the latitude, longitude, and elevation calculations can be refined more accurately.
GPS receivers do not 'use' elevation for anything. They use the signals from several satellites simultaneously to calculate the latitude, longitude, and elevation of the receiver's location. It takes a minimum of three satellites to calculate the latitude and longitude, a minimum of four satellites to calculate the latitude, longitude, and elevation, if more satellites can be found the latitude, longitude, and elevation calculations can be refined more accurately.
Lines of latitude indicate a location's distance north or south of the Equator, while lines of longitude show its distance east or west of the Prime Meridian. By identifying the intersection of specific latitude and longitude lines, you can pinpoint an absolute location on a map. The coordinates (latitude and longitude) provide a precise geographical reference for any point on Earth.