Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Chaco Culture' has mentioned 'Irrigation' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| [42][43] While investigating Wetherill's land claim, federal land agent Samuel J. Holsinger detailed the physical setting of the canyon and the sites, noted prehistoric road segments and stairways above Chetro Ketl, and documented prehistoric dams and irrigation systems. | WIKI |