The _____ maintains the geodetic control network of the Philippines.

• A. Land Management Bureau
• B. Land Registration Authority
• C. National Mapping and Resource Information Authority
• D. National Mapping and Resource Information Administration

Answer: (C)

The key idea is which agency is responsible for the nationwide reference framework used by all surveying and mapping activities. The National Mapping and Resource Information Authority is the body that maintains the geodetic control network—the system of precisely measured points with known coordinates and elevations that serve as the backbone for accurate positioning, surveying, and map making across the country. This agency handles national mapping, geospatial information, and related infrastructure, ensuring that reference points stay consistent and up to date for GPS, leveling, and triangulation work.

The other agencies focus on land administration and registration rather than geodetic infrastructure. The correct name is National Mapping and Resource Information Authority, not the Administration variant, and this agency is the one tasked with keeping the geodetic framework intact for reliable geospatial data nationwide.