Benchmark - 2-1958 HS est
| Benchmark Number | 2-1958 HS est |
|---|---|
| Established In | |
| Condition | GOOD |
| Latitude | 59.995883 |
| Longitude | -69.913877 |
| Coordinate Accuracy | APPROXIMATE |
| Reference Benchmark | No |
| Vertical Datum Code | UNKNOWN |
| Type | PERMANENT_MARKER |
| Setting | VERTICAL |
| Description | A standard Hydrographic Service bronze tablet stamped BM 2-1958, cemented in bedrock 8 m from high water mark and 9 m west of BM 1. Coordinates updated June 2020 based on October 2019 GPS PPP solution. |
Elevations
| Date | Elevation (m) | Status | Vertical Datum Code |
|---|---|---|---|
| 1958-08-01 | 11.591 | HISTORICAL | CD |
| 2018-10-01 | 12.551 | ACTIVE | CD |
| 2019-09-22 | -15.416 | ACTIVE | NAD83_CSRS |
| 2019-09-22 | 6.435 | ACTIVE | CGVD2013 |
| 2019-09-22 | 6.563 | ACTIVE | CGVD28_HTv2_0 |