The point of data collection on a map is called the

• A. Control Point
• B. Benchmark
• C. Datum Point
• D. Reference Point

Answer: (A)

In mapping and surveying, the point where data is collected is anchored to precise, known locations called control points. These points have accurately known coordinates in a standard reference system, and they provide the framework that ties field measurements to real-world positions on the map. That’s why they’re the best answer: they establish both the horizontal location and, when needed, the vertical reference for all data collected around them, ensuring the map and measurements line up consistently.

Benchmarks are specific to vertical control for elevations, not the general position used to anchor all data. A datum point and a reference point are broader ideas: a datum defines the reference surface or coordinate framework, and a reference point isn’t necessarily tied to precise, known coordinates for anchoring data like a control point is.