Formed by great rivers which flowed in the area over 70 million years ago, the Badlands are rich in fossil remains of countless ancient animals and plants.
(great rivers; flowed; L:in the area; T:over 70 million years ago) (the Badlands; are; rich in fossil) (the Badlands; remains; of countless ancient animals and plants)
great rivers the Badlands the Badlands
flowed are remains
L:in the area T:over 70 million years ago
rich in fossil
of countless ancient animals and plants