2006-12-16 04:41:32 · 6 answers · asked by ♥ tong tong 3 in Science & Mathematics ➔ Earth Sciences & Geology
The appalacian moutains along the east coast are the oldest and at one time were taller than the rockies however over the millenia they have eroded to their present state.
2006-12-16 04:47:31 · answer #1 · answered by Stephen D 2 · 1⤊ 0⤋
The Appalachian Mountains are the oldest mountains in the U.S.
2006-12-16 12:49:10 · answer #2 · answered by bte666 1 · 0⤊ 0⤋
Probably the Appalachians. I remember being told when I was young and living in Pennsylvania that our mountains were mere hills compared to the ones out west because they were so very much older and had been eroding for so very much longer. There are other reasons, such as the type of rock and the weathering agents, but basically, they are very old.
2006-12-16 12:50:29 · answer #3 · answered by auntb93again 7 · 0⤊ 0⤋
The St. Francois Mountains in Missouri
2006-12-16 12:45:09 · answer #4 · answered by Anonymous · 0⤊ 1⤋
The Rocky Mountains. The taller the mountain, the older it is. So, go back to 5th grade georgraphy and answer this? What's the tallest mountain in the U.S.?
2006-12-16 12:43:51 · answer #5 · answered by rawlings12345 4 · 0⤊ 3⤋
applachian mountains
2006-12-18 12:55:23 · answer #6 · answered by Nate 3 · 0⤊ 0⤋