Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Mammoth Cave National Park' has mentioned 'Soil' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| Soon the cave was being mined for calcium nitrate on an industrial scale, utilizing a labor force of 70 slaves to build and operate the soil leaching apparatus, as well as to haul the raw soil from deep in the cave to the central processing site. | WIKI |
| The difficulties of farming life in the hardscrabble, poor soil of the cave-country influenced local owners of smaller nearby caves to see opportunities for commercial exploitation, particularly given the success of Mammoth Cave as a tourist attraction. | WIKI |