Benchmark - 70L509
| Benchmark Number | 70L509 |
|---|---|
| Established In | 1970 |
| Condition | NOT_FOUND |
| Latitude | 46.83044 |
| Longitude | -71.16453 |
| Reference Benchmark | No |
| Vertical Datum Code | UNKNOWN |
| Type | PERMANENT_MARKER |
| Setting | VERTICAL |
| Description | GSC convex tablet stamped 70L509, set horizontally in the west foundation wall of building No. 91. The BM is located 0.46 m from the south corner and 0.21 m under the red brick. |
| Date | Elevation | Status | Vertical Datum Code |
|---|---|---|---|
| 2001-05-01 | 7.782 | ACTIVE | CD |