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The value of land may be determined by how it can be used. For example, it may contain valuable resources such as water, minerals, tillable soil, timber or wildlife. There also may be commercial value in the natural attraction of land such as caves, lakes or trails. Land value can be reduced by erosion, flood, earthquake, fire or regulation.
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Marshall Wilson Reavis III (Insurance: Concepts & Coverage: Property, Liability, Life, Health and Risk Management)