Occurrence of Attributes in Original Text

The text related to the cultural heritage 'Cahokia Mounds State Historic Site' has mentioned 'Erosion' in the following places:
Occurrence Sentence Text Source
However, more recent research suggests that there is no evidence of human-caused erosion or flooding at Cahokia.
The east and northwest sides of Monks Mound were twice excavated in August 2007 during an attempt to avoid erosion due to slumping.
Known and potential threats to the property include erosion due to both natural and human causes, development, flooding (and flood control actions), and damage to subsurface archaeological features from deep-rooted plant species.
The Master Management Plan and a monitoring program are part of a long-term strategy for the property to aid in addressing known and potential vulnerabilities such as erosion, development, flooding (and flood control), and damage to subsurface archaeological features from deep-rooted plant species.