Canada 1:250,000 National Topographic System (NTS)

NTS number Scale Edition number Date of publication
30 L 1 : 250,000 1 1953
30 M 1 : 253,440 - 1933 (1932)
30 M 1:   253,440   1941
30 M 1 : 250,000 1 1953
30 M 1 : 250,000 1 1965
30 M 1: 250,000 2 1967
30 M 1: 250,000 3 1980
30 N 1 : 250,000 1 1953
31 B 1 : 250,000 1 1952
31 C 1 : 253,440 - 1940 (1935)
31 C 1 : 250,000 2 1950-1951
31 D   (2copies) 1 : 253,440 2 1940
31 D 1 : 250,000 2 1955-1958
31 D 1: 250,000 4 1964
31 D 1: 250,000 5 1974
31 G 1: 250,000 2 1952-1953
40 G 1 : 250,000 1 1953
40 P (2copies) 1: 253,440   1939
40 P 1: 250,000 2 1953
40 I (3copies) 1 : 253,440 - 1939
40 I 1 : 250,000 1 1953
40 I (2copies) 1:250,000 2 1964
40 J (3 copies) 1 : 253,440 - 1943
40 J 1 : 250,000 1 1953
40 P (4 copies) 1 : 253,440 - 1939
40 P (2 copies) 1: 250,000 2 1953
40 P 1: 250,000 2 1953
40 P 1: 250,000 3 1973
41 A (3 copies) 1 : 253,440 1 1947
41 A 1: 250,000 2 1961
41 A 1: 250,000 3 1973