125597
It rises in the Killdeer Mountains , in Dunn County , and flows east across the prairie country , past Killdeer , Dunn Center , Halliday , and Zap .
 Killdeer Mountains, Dunn County, Killdeer, Dunn Center, Halliday, Zap
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
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Answer:
 Killdeer Mountains, Dunn County, Killdeer, Dunn Center, Halliday, Zap