49th parallel
It is a circle of latitude that forms most of the US/Canada border.
The 49th parallel
38th parallel of latitude
The Pennsylvania-West Virginia border is located along the 39th parallel north latitude.
The 42nd parallel forms the southern boundary of Idaho. It marks the border between Idaho and Nevada as well as a portion of the border between Idaho and Oregon.
The 42nd parallel borders CA/OR and NE/ID source: Wikipedia Your source needs a new source!
The 49th parallel of latitude forms the border between Canada and the US from Lake of the Woods to the Georgia Strait. The 45th parallel of latitude also forms part of the border between Canada and the US along the northern boundaries of the states of New York, Vermont and New Hampshire.
The southern-most latitude in Canada is 41°N and the majority of the US/Canada border is at 49°N latitude (also called the 49th parallel) from 95°W to 123°W longitude.
The border between Nebraska and Kansas is roughly defined by the 40th parallel north latitude. This line marks the northern boundary of Kansas and the southern boundary of Nebraska, extending horizontally across the two states.
All of them; besides the thirteen original colonies, all other US states have been acquired by means of land purchase or war. US Gulf states are:FloridaAlabamaMississippiLouisianaTexas
The 49th parallel of latitude forms the border between Canada and the US from Lake of the Woods to the Georgia Strait. The 45th parallel of latitude (with slight deviations) also forms part of the border between Canada and the US, along the northern boundaries of the states of New York and Vermont.