Which survey system establishes markers for accurate land surveying?

The US Coast and Geodetic Survey System is recognized for establishing precise markers essential for accurate land surveying. This system provides a framework that allows surveyors to determine exact locations and delineate property boundaries reliably. By creating strategic benchmarks and utilizing triangulation techniques, the survey system generates data crucial for mapping and defining land areas.

This system plays a pivotal role in ensuring that survey measurements are consistent and can be referenced over time, which is vital for land ownership documentation, construction projects, and various environmental assessments. The standards and methodologies developed by this system have endured and remain fundamental to modern surveying practices, thus supporting its selection as the correct answer.

The other choices, while related to geographic and spatial data, do not specifically focus on setting physical markers for land surveying as effectively as the US Coast and Geodetic Survey System does.