Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Mammoth Cave National Park' has mentioned 'Hiking' in the following places:
Occurrence Sentence Text Source
The contact between limestone and sandstone can be found by hiking from the valley bottoms to the ridgetops: typically, as one approaches the top of a ridge, one sees the outcrops of exposed rock change in composition from limestone to sandstone at a well-defined elevation.