| Site Information |
| Site Name | Code | Subnet | Type | Monument Installed | Data Archived |
| GRMD | GRMD | PANGA | Deep Drill-brace (Y) | 2005-07-29T18 | PANGA |
| Site Location Information |
| City | State | Latitude | Longitude | Elevation |
| Grand Mound | WA | 46.7954 | -123.0226 | |
| Approximate ITRF Position X,Y,Z (m) |
| X | Y | Z |
| -2383865.2402 | -3667665.3104 | 4626251.8562 |
| Current Receiver and Antenna Type |
| Receiver | Antenna |
| TRIMBLE ALLOY | TRM115000.00+S SCIT |
| Data Acquisition for CGPS |
| Telemetry | Real-Time | SGM Dist | Onboard PPP | Last Data |
| CDMA | Y | 1532 | Y | current |
| Receiver Upgrades and Firmware Updates |
| Date Installed | Time UTC | Receiver Type |
| 2005-06-30 | 00:00:00 | TRIMBLE 4700 |
| 2010-10-18 | 00:00:00 | TPS NET-G3A |
| 2016-06-23 | 12:30:00 | TRIMBLE NETR5 |
| 2017-06-23 | 10:58:00 | TRIMBLE NETR9 |
| 2018-07-23 | 00:00:00 | TRIMBLE NETR9 |
| 2019-05-21 | 00:00:00 | TRIMBLE NETR9 |
| 2021-04-27 | 13:10:00 | TRIMBLE NETR9 |
| 2023-11-03 | 20:16:00 | TRIMBLE ALLOY |
| 2024-01-17 | 21:20:00 | TRIMBLE ALLOY |
| Antenna and Domes |
| Date Installed | Time UTC | Antenna Type & Dome |
| 2005-06-30 | 00:00:00 | TRM33429.00-GP SCIT |
| 2010-11-18 | 00:00:00 | TPSCR.G3 SCIT |
| 2016-06-23 | 12:30:00 | TRM57971.00 SCIT |
| 2019-05-29 | 00:00:00 | TRM115000.00+S SCIT |
| 2020-06-23 | 17:00:00 | TRM57971.00 SCIT |
| 2022-01-20 | 17:40:00 | TRM115000.10+S SCIT |
| 2022-08-16 | 00:00:00 | TRM115000.00+S SCIT |
| DD=Daily Download, MD=Manual Download, DC=Decommissioned, NA=Not Available |