Benchmark - 1-1958 HS est
| Benchmark Number | 1-1958 HS est |
|---|---|
| Established In | |
| Condition | GOOD |
| Latitude | 59.988381 |
| Longitude | -70.079829 |
| Coordinate Accuracy | APPROXIMATE |
| Reference Benchmark | No |
| Vertical Datum Code | UNKNOWN |
| Type | PERMANENT_MARKER |
| Setting | VERTICAL |
| Description | A standard Hydrographic Service bronze tablet stamped BM 1-1958, cemented in bedrock 9 m from high water line at SE extremity of Basking Island.<p> Approximate coordinates based on sketch. |
Elevations
| Date | Elevation (m) | Status | Vertical Datum Code |
|---|---|---|---|
| 1958-08-01 | 14.32 | HISTORICAL | CD |
| 2018-01-01 | 15.24 | ACTIVE | CD |