The specifications for a survey require that the boundaries of a subdivision be referenced to the state plane coordinate system. You can obtain a list of control monuments and coordinates from the?

The correct answer is that you can obtain a list of control monuments and coordinates from the National Geodetic Survey (NGS). The NGS is responsible for maintaining the National Spatial Reference System, which provides the foundational reference points and coordinates necessary for surveys across the United States, including state plane coordinate systems. This system ensures consistency in surveying practices and allows surveyors to accurately reference and relate their measurements to established benchmarks and control points.

These control monuments are critical for anyone conducting a survey that requires precise positional data tied to a specific coordinate system, as they serve as the physical markers from which measurements can be made. The NGS offers various tools and resources that surveyors can use to access this data efficiently.

While other organizations, such as the National Society of Professional Surveyors and the Bureau of Land Management, play significant roles in the surveying profession, they do not maintain the comprehensive databases of control monuments and coordinates that are available through the NGS. The National Bureau of Standards, now known as the National Institute of Standards and Technology (NIST), also does not focus specifically on geodetic control or surveying references in the same way as the NGS. Therefore, the NGS is the primary source for this necessary information in the context of referencing surveys