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The only thing more southerly than the Douglas Ranges , other than floodplain , is the unnamed hill-country that is most of Districts of Mission and part of Maple Ridge , from the Alouette River east across the upland to Hatzic Prairie .
 Douglas, Districts of Mission, Maple Ridge
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, Districts of Mission, Maple Ridge