Benchmark - D-19XX
| Benchmark Number | D-19XX |
|---|---|
| Established In | 1986 |
| Condition | GOOD |
| Latitude | 45.57044 |
| Longitude | -74.381326 |
| Reference Benchmark | No |
| Vertical Datum Code | UNKNOWN |
| Type | PERMANENT_MARKER |
| Setting | HORIZONTAL |
| Description | Hydro-Québec convex bronze tablet stamped D, set vertically on the footbridge of the Carillon upper lock. The marker is located 4.57 m from the steel plate that covers the door pivots upstream of the Carillon lock. |
| Date | Elevation | Status | Vertical Datum Code |
|---|---|---|---|
| 2002-10-17 | 2.785 | ACTIVE | CD |