381470
Owned by the Fairfax County Park Authority , it is protected with a local conservation easement , and preserves a rare habitat known as a northern hardpan basic oak - hickory forest .
 Fairfax
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Fairfax