COMPD_CS["CSRN2025 (NAD83 2011) + COH88 2025 (NAVD88) height", GEOGCS["CSRN epoch 2025.0 (NAD83 2011)", DATUM["California_Spatial_Reference_Network_epoch_2025_0_NAD83_2011", SPHEROID["GRS 1980",6378137,298.257222101, AUTHORITY["EPSG","7019"]], AUTHORITY["EPSG","1414"]], PRIMEM["Greenwich",0, AUTHORITY["EPSG","8901"]], UNIT["degree",0.0174532925199433, AUTHORITY["EPSG","9122"]], AUTHORITY["EPSG","10910"]], VERT_CS["COH88 2025 (NAVD88) height", VERT_DATUM["Derived California Orthometric Heights of 1988 epoch 2025",2005, AUTHORITY["EPSG","1416"]], UNIT["metre",1, AUTHORITY["EPSG","9001"]], AXIS["Gravity-related height",UP], AUTHORITY["EPSG","10918"]], AUTHORITY["EPSG","10920"]]