What do control data marks identify on maps?

What do control data marks identify on maps?

• A. Only latitude
• B. Only elevation
• C. Latitude, longitude, or all three
• D. Only longitude

Answer: (C)

Control data marks provide the coordinates that locate a point on the map within the geographic framework. They give the position in terms of latitude and longitude, and if elevation data is included, they can also provide height above a reference datum. Because a control point can be defined horizontally (lat and lon) or in three dimensions (lat, lon, and elevation), these marks can identify latitude, longitude, or all three. This anchoring to precise coordinates lets the map align accurately with real-world locations.

Control data marks provide the coordinates that locate a point on the map within the geographic framework. They give the position in terms of latitude and longitude, and if elevation data is included, they can also provide height above a reference datum. Because a control point can be defined horizontally (lat and lon) or in three dimensions (lat, lon, and elevation), these marks can identify latitude, longitude, or all three. This anchoring to precise coordinates lets the map align accurately with real-world locations.