Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Historic Fortified Town of Campeche' has mentioned 'Valley' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| Due to the type of soil, the valley in which it is located, is flooded in the rainy season and retains high humidity almost all year. | WIKI |
| To remedy this problem, the Maya developed an advanced system of hydraulic works: a network of canals drained the valley and the water was taken to a lagoon, which was transformed into dam through retaining walls, while other canals were used to irrigate the fields. | WIKI |