Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Ancient Maya City and Protected Tropical Forests of Calakmul, Campeche' has mentioned 'Marshland' in the following places:
Occurrence Sentence Text Source
[6] The city is located on a rise about 35 metres (115xc2xa0ft) above a large seasonal swamp lying to the west,[7] known as the El Laberinto bajo (a Spanish word used in the region to denote a low-lying area of seasonal marshland).