Which of these states of the USA extends the furthest south?
New Mexico is a state in the Southwestern Region of the United States of America. With a population of approximately two million, New Mexico is the 36th most populous state. With a total area of 121,590 sq mi (314,900 km2), it is the fifth largest and fifth least densely populated of the fifty states. New Mexico's eastern border lies along 103°W longitude with the state of Oklahoma, and (due to a 19th-century surveying error) 2.2 miles (3.5 kilometres) west of 103°W longitude with Texas.On the southern border, Texas makes up the eastern two-thirds, while the Mexican states of Chihuahua and Sonora make up the western third, with Chihuahua making up about 90% of that. The western border with Arizona runs along the 109° 03'W longitude.[