Appalacian Mountains?

Question

How is it that the Appalacian Mountains are the oldest mountain chain in the US? What about the Rocky Mountains?

Answer 1

The Appalachians were formed when continents collided in the forming of Pangaea(the super continent). In fact the upper part of the Appalachians is in northern Europe. Thus they date back to before North America was even a continent. The Rockies formed from tectonic shifting once N.A. was split away, thats why they are still tall and sharp in comparison to the Appalachians

Answer 2

is that this a severe question? The Appalacian Mountains are a factor of the Appalacian path. it is the variety of mountains. The smoky mountains are a small piece of the Appalacians, although they arent an entire variety. The Rockies are each and each of ways on the different edge of the country. What are they coaching at school at the instant?

Answer 3

The Appalachians are older because of erosion and weathering. So perhaps eons before, they were as sharp and tall as the Rockies are now.

Answer 4

MOST IF NOT ALL THE WESTERN USA MOUNTAINS WERE FORMED MUCH LATER, GEOLOGICALLY SPEAKING THAN THE APPALACHIANS WHICH HAVE BEEN ERODED BY WIND AND WATER TO A FRACTION OF THEIR ORIGINAL SIZE.