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"]]