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There are pillow lavas in the Northwest Territories that are about 2.6 " billion years old and are preserved in the Cameron River Volcanic Belt .
 Northwest Territories, Cameron River Volcanic Belt
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Northwest Territories, Cameron River Volcanic Belt