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Timeline of the Rocky Mountains

By IsabelleLaube
  • 1 CE

    Pangaea

    350 000 000 years ago Pangaea the giant continent formed and the rocks that will soon form the Rocky Mountains are on the ocean floor and beneath the crust of the Earth.
  • 2

    Formation of Rockies

    180 000 000 years ago, the Rocky Mountains started to form. The formation of the Rockies took thousands of years. Pictures of how it formed can be found on Page 2 under the heading, "Photos".
  • 3

    The Intrusion Into the old Rock

    58 000 000 years ago, intrusion occurred into the old Precambrian rock of the Rockies near Boulder, Colorado.