Canada, Niagara, aerial photography
by the R.C.A.F. ; resurveyed, compiled, drawn and printed by the Army Survey Establishment, R.C.E
(National topographic series)
Map Distribution Office, Dept. of Mines and Technical Surveys, [1955]
地図資料(地図)
***記述は遡及データによる
Scale 1: 50,000
Map Distribution Office, Dept. of Mines and Technical Surveys