Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Grand Canyon National Park' has mentioned 'Erosion' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| It twists and turns 445 km (276.5 miles) and was formed during 6 million years of geological activity and erosion by the Colorado River on the upraised earthxe2x80x99s crust. | UNESCO |