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Barberton Greenstone Belt in eastern Africa is the oldest mountain range on Earth (3.5 billion years old) - this is evident if you understand the formation of the continents.

The Guiana Highlands in South America are thought to be the earth's oldest surface (2 billion years old): it includes a large mountain plateau.

Then there is the Medicine Mountain on Wyoming were they have dated rocks to 2-3 billion years ago.

However, on top of all this we have the 3.8 billion year old 25 mile long band of zircon crystal rocks embedded in the Isua crust in Greenland!

A lot of people in the USA. think that the Appalachians were among the oldest mountains formed. Although they are very impressive, stretching from the Eastern USA. to Canada, Labrador, Scotland and down to Morocco, they were formed only about 680 mya during the formation of Pangaea. But we now know that Pannotia preceded Pangaea and another super-continent called Rodinia formed 1,100 mya.

So if we have evidence of mountains at 3.8 bya, we must have had a land mass on Earth even way before then? This seems to contest the theory that the Earth was totally underwater until 3.8 bya, and that we still don't know?

Much research has been done in the St. Francois mountains of South East Missouri. They have been considered the oldest range by many geologist. Volcanic episodes created many unique, beautiful, and odd formations throughout this mountain range which is located within the Ozark Plateau. The Precambrian exposures of Pilot Knob are regularly studied by geologist from around the world. The draw to these exposure's seem to be that they are found only in two places around the world, at Pilot Knob Missouri in Iron County and in New Zealand. Elephant Rocks and Johnson Shut-ins are two more examples of strange and unique results of geological events. The area is rich in geological formations and is very secluded which makes this a favorite site of geologist, hikers and other outdoor enthusiasts.

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13y ago
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Christopher Joseph B...

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1y ago
There is a serious hypothesis that two planets collided and merged into current Earth and may explain the conflict in geological dating.
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10y ago

The oldest mountain range on earth is the Appalachia range, which started forming 325 million years ago.

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11y ago

the mid-ocean ridges

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Q: What earths features form the longest mountain ranges on earth?
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Related questions

Which features form the longest mountain ranges on Earth?

Ocean Ridge

What type of map shows earths natural features such as rivers lakes and mountain ranges?


Which type of map shows the most detailed information about Earths natural features such as rivers lakes and mountain ranges?

Correct Answer: Physical

Longest mountain range on earth?

The longest mountain ranges is the Andes Mountains in South America. The mountain ranges stretch estimate is more than 5,000 miles.

What is the longest mountain ranges in the us?


Where on earth are the longest mountain ranges located?

south america

What are the three largest mountain ranges in the world?

The three largest mountain ranges in the world are Andes, Rocky Mountains and Transantarctic Mountains. These are the longest ranges in the world.

What is Antarctica's longest mountain?

Mountains are not usually measured in length. Mountain ranges, however, are measured this way. You may be thinking of the Trans-Antarctic mountain range, which measures about 3,500 Km in length, and is one of the longest mountain ranges on earth.

What is the difference between a mountain range and mountain system?

A mountain system is an area of interconnected mountain ranges. The mountain system has a series of ranges linked together by geological features.

Where are some of the longest mountain ranges on Earth found?

The chain of mountains that form the mid-ocean-ridges are the longest mountain chains in the world.

What features do great underwater mountain ranges exist?


What is latin Americans longest series of mountain ranges?

The Andes mountain range, west of South America.