Lines 1 to 5 are marine lines along the Labrador coast, lines 6 and 7 stretch approximately east-west across part of the north end of Ungava Bay.
| Data type | Lines |
|---|---|
| Labrador Sea UKOOA files | 1A, 1A-1, 1A-L1, 1A-L2, 1C, 1C-L1, 1C-L1A, 1C-L2, 1C-L3, 2, 2-L1, 2-L2, 2-L2A, 3, 3-L1, 3-L2 |
| Ungava Bay UKOOA files | 5, 6A, 6A-L1, 6A-L1A, 6B-L1, 6B-L1B, 6B-L1D, 7, 7A |
| All ECSOOT UKOOA files | all lines compressed |
| CDP coordinates | N, S |