Code Latitude Longitude Start End Receiver Maint. Location BRIB 37.91940 -122.15255 1993.58 2500.99 A-Z12 BSL Briones Reservation, Orinda CMBB 38.03418 -120.38604 1993.92 2500.99 A-Z12 BSL Columbia College, Columbia DIAB 37.87858 -121.91563 1998.33 2500.99 A-Z12 BSL Mt. Diablo FARB 37.69721 -123.00076 1994.00 2500.99 A-Z12 BSL Farallon Island HOPB 38.99518 -123.07472 1995.58 2500.99 A-Z12 BSL Hopland Field Stat., Hopland LUTZ 37.28685 -121.86522 1996.33 2500.99 A-Z12 BSL SCC Comm., Santa Clara MHCB 37.34153 -121.64258 1996.33 2500.99 A-Z12 BSL Lick Obs., Mt. Hamilton MODB 41.90233 -120.30283 1999.83 2500.99 A-Z12 BSL Modoc Plateau MOLA 37.94657 -122.41992 1993.75 2500.99 T-SSE BSL Pt. Molate, Richmond MONB 37.49892 -121.87131 1998.50 2500.99 A-Z12 BSL Monument Peak, Milpitas MUSB 37.16994 -119.30935 1997.83 2500.99 A-Z12 BSL Musick Mt. OHLN 38.00742 -122.27371 2001.83 2500.99 A-Z12 BSL Ohlone Park, Hercules ORVB 39.55463 -121.50029 1996.83 2500.99 A-Z12 BSL Oroville OXMT 37.49936 -122.42431 2004.12 2500.99 A-UZ BSL Ox Mt., Half Moon Bay PKDB 35.94524 -120.54155 1996.67 2500.99 A-Z12 BSL Bear Valley Ranch, Parkfield POTB 38.20258 -121.95560 1998.92 2500.99 A-Z12 BSL Potrero Hill, Fairfield PTRB 37.99640 -123.01490 1998.58 2500.99 A-Z12 BSL Point Reyes Lighthouse SAOB 36.76530 -121.44718 1997.58 2500.99 A-Z12 BSL San Andreas Obs., Hollister SODB 37.16640 -121.92552 1996.33 2500.99 A-Z12 BSL Soda Springs, Los Gatos SUTB 39.20584 -121.82060 1997.33 2500.99 A-Z12 BSL Sutter Buttes TIBB 37.89087 -122.44760 1994.42 2500.99 A-Z12 BSL Tiburon YBHB 41.73166 -122.71073 1996.75 2500.99 A-Z12 BSL Yreka Blue Horn Mine, Yreka CHAB 37.72412 -122.11931 1992.00 2500.99 A-Z12 USGS Chabot, San Leandro WINT 37.65264 -122.14056 1992.00 2500.99 A-Z12 USGS Winton, Hayward EBMD 37.81501 -122.28380 1999.18 2500.99 T-SSi EBMUD EBMUD, Oakland QUIN 39.97455 -120.94443 1992.68 2500.99 Rogue JPL Quincy S300 37.66642 -121.55815 1998.48 2500.99 T-SSi LLNL Site 300, Livermore CHO1 39.43264 -121.66496 1999.50 2500.99 A-Z12 NGS Chico CME1 40.44177 -124.39633 1995.74 2500.99 A-Z12 NGS Cape Mendocino CMOD 37.64130 -121.99997 2000.76 2500.99 T-SSi City Modesto CNDR 37.89641 -121.27849 1999.27 2500.99 A-Z12 NGS Condor, Stockton PBL1 37.85306 -122.41944 1995.50 2500.99 A-Z12 NGS Point Blunt, Angel Island PPT1 37.18167 -122.39333 1996.00 2500.99 A-Z12 NGS Pigeon Point SUAA 37.42691 -122.17328 1994.30 2500.99 A-Z12 SU Stanford University UCD1 38.53624 -121.75123 1996.38 2500.99 T-SSi UCD UC Davis UCSC 36.99279 -122.05219 2000.31 2500.99 T-SSi UCSC UC Santa Cruz CAND 35.93935 -120.43370 1999.33 2500.99 A-Z12 USGS Cann, Parkfield CARH 35.88838 -120.43082 2001.58 2500.99 A-Z12 USGS Carr Hill 2, Parkfield CARR 35.88835 -120.43084 1989.00 2500.99 A-Z12 JPL Carr Hill, Parkfield CRBT 35.79161 -120.75075 2001.67 2500.99 A-Z12 USGS Camp Roberts, Parkfield HOGS 35.86671 -120.47949 2001.50 2500.99 A-Z12 USGS Hogs, Parkfield HUNT 35.88081 -120.40238 2001.58 2500.99 A-Z12 USGS Hunt, Parkfield LAND 35.89979 -120.47328 1999.33 2500.99 A-Z12 USGS Lang, Parkfield LOWS 35.82871 -120.59428 2001.58 2500.99 A-Z12 USGS Lowes, Parkfield MASW 35.83260 -120.44306 2001.58 2500.99 A-Z12 USGS Mason West, Parkfield MIDA 35.92191 -120.45883 1999.75 2500.99 A-Z12 USGS Mida, Parkfield MNMC 35.96947 -120.43405 2001.58 2500.99 A-Z12 USGS Mine Mt., Parkfield POMM 35.91991 -120.47843 1999.75 2500.99 A-Z12 USGS Pomm, Parkfield RNCH 35.89999 -120.52482 2001.58 2500.99 A-Z12 USGS Ranchita, Parkfield TBLP 35.91741 -120.36034 2001.67 2500.99 A-Z12 USGS Table, Parkfield BALD 37.78330 -118.90130 1999.67 2500.99 A-ZFX CVO Bald Mt., LVC CA99 37.64460 -118.89670 1999.67 2500.99 A-ZFX CVO Casa 1999, LVC CASA 37.64464 -118.89666 1993.00 2500.99 Rogue JPL Casa Diablo, LVC DDMN 37.74430 -118.98120 1999.67 2500.99 A-ZFX CVO Deadman Creek, LVC DECH 38.05150 -119.09060 2001.58 2500.99 A-ZFX CVO Dechambeau Ranch, LVC HOTK 37.65860 -118.82130 2001.67 2500.99 A-Z12 CVO Hot Creek, LVC JNPR 37.77170 -119.08470 1997.81 2500.99 A-Z12 USGS Juniper, LVC KNOL 37.65912 -118.97917 1998.58 2500.99 A-ZFX CVO Knolls, LVC KRAC 37.71330 -118.88050 2001.67 2500.99 A-Z12 CVO Krakatoa-USGS, LVC KRAK 37.71313 -118.88114 1994.73 2500.99 Rogue JPL Krakatoa, LVC LINC 37.63719 -119.01729 1998.67 2500.99 A-Z12 CVO Lincoln, LVC MINS 37.65376 -119.06090 1995.92 2500.99 A-Z12 USGS Minaret Summit, LVC MWTP 37.64052 -118.94473 1998.58 2500.99 A-ZFX CVO Mammoth Water Treat Plant, LVC PMTN 37.83130 -119.05690 1999.67 2500.99 A-Z12 CVO Panorama Mt., LVC RDOM 37.67707 -118.89794 1998.58 2500.99 A-ZFX CVO Resurgent Dome, LVC SAWC 37.68990 -118.95310 2000.65 2500.99 A-ZFX CVO Saw, LVC TILC 37.61890 -118.86280 2000.65 2500.99 A-Z12 CVO Tilla, LVC WATC 37.66440 -118.65390 2001.67 2500.99 A-Z12 CVO Waterson, LVC