S. 4870 — Earth MRI Reauthorization Act of 2026

This section expands the purpose of the Earth Mapping Resources Initiative within the U.S. Geological Survey to permit use of data from modern sensing technologies, including digital geochemistry, advanced geochemical methods, real-time acquisition systems, and data-driven analytics, to characterize critical mineral, geothermal, natural hydrogen, and other subsurface resources. It adds the 3D Hydrography Program to the required data integration sources. It reauthorizes the Initiative for 2027 through 2031 (from 2022 through 2026).