Benchmark -
| Benchmark Number | Q81-4 |
|---|---|
| Established In | 1987 |
| Condition | GOOD |
| Latitude | 45.39495 |
| Longitude | -73.256912 |
| Reference Benchmark | No |
| Vertical Datum Code | UNKNOWN |
| Type | PERMANENT_MARKER |
| Setting | HORIZONTAL |
| Date | Elevation | Status | Vertical Datum Code |
|---|---|---|---|
| 1987-01-01 | 4.787 | ACTIVE | CD |