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Crow 's Nest Natural Area Preserve is a large wilderness area located on the southern border of Stafford County , Virginia , United States , between Potomac Creek and Accokeek Creek .
 location: Stafford County , Virginia; location: United States; organization: Potomac
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Stafford County , Virginia; location: United States; organization: Potomac