N an informal name for the Canadian border with the USA, which is in part delineated by the parallel line of latitude at 49°N 49平行线; 加拿大与美国边界的非正式名称，因两国在纬度49度处平行而命名 [Canadian]
The treaty made the forty-ninth parallel the border from the Rocky Mountains to the Pacific Ocean.
VOA: special.2009.02.19
The British foreign minister proposed a treaty that would make the forty-ninth parallel of latitude the border between the United States and British Oregon.
VOA: special.2009.02.19
He offered to divide Oregon at the forty-ninth parallel of latitude.
VOA: special.2009.02.19
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