P420 (WA)

P420 is an NGS CORS reference station operated by NOAA National Geodetic Survey in Lewis County, US, tracking GPS and GLONASS constellations. Surveyors can utilize this station for real-time kinematic (RTK) positioning, static post-processing, and network adjustments. Continuous observations provide high-precision geodetic control for surveying, mapping, and monitoring applications across the regi