NTS Maps Early Editions – 1:506,880
| NTS NUMBER | TITLE | PUBLICATION YEAR | EDITION | QTY |
| 13 SE & 3 SW | Battle Harbour-Cartwright NW 52/60 | 1958 | 4 (Preliminary) | 1 |
| 23 NE | Dyke Lake NW 54/68 | 1953 | 4(Preliminary) | 1 |
| 24 SE | Indian House NW 56/68 | 1957 | 5 | 1 |
| 25 NW & 25 NE | Frobisher Bay | 1946 | (Preliminary) | 1 |
| 25 SW | Wakeham Bay NW 62/70 | 1950 | 3 (Preliminary) | 1 |
| 35 NW & 35 NE | Hudson Strait West NW 62/80 | 1950 | 4 (Preliminary) | 1 |
| 35 SE | Povungnituk River NW 60/76 | 1949 | (Preliminary) | 1 |
| 36 SW & 36 SE | Foxe Peninsula NW 64/80 | 1950 | 4 (Preliminary) | 1 |
| 42 NE | Moosonee NW 50/84 | 1948 | (Preliminary) | 1 |
| 42 NW | Kowkash-Martin Falls NW 50/88 | 1952 | Unknown | 1 |
| 43 SW | Attawapiskat NW 52/88 | 1951 | 3 (Preliminary) | 1 |
| 45 NW & 45 NE | Southampton Island South | 1944 | Unknown | 1 |
| 46 SW & 46 SE | Southampton Island North | 1945 | Unknown | 1 |
| 52 NE | Pickle Crow-Armstrong | 1952 | 2 | 1 |
| 52 NW & 52 SW | Kenora-Hudson | 1939 | Unknown | 1 |
| 52 SW | Kenora-Fort Frances | 1951 | 3 | 1 |
| 52 NW | English River | 1951 | 2 | 1 |
| 53 SW | Berens River | 1949 | (Preliminary) | 1 |
| 55 NW & 55 NE | Chesterfield Inlet NW 62/96 | 1948 | (Preliminary) | 1 |
| 63 NE | Upper Nelson River | 1952 | 3 | 1 |
| 65 SE | Nueltin Lake | 1950 | (Preliminary) | 1 |
| 66 NW & 66 NE | Ogden Bay NW 66/104 | 1950 | 3 (Preliminary) | 1 |