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The Douglas Ranges are a subrange of the Pacific Ranges of the Coast Mountains of the Canadian province of British Columbia , about 70 km east of downtown Vancouver , north of the Fraser River and between the valleys of Stave and Harrison Lake s. They are approximately 4900 km ² ( 1900 sq mi ) in area .
 Douglas, British Columbia, Vancouver
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Douglas, British Columbia, Vancouver