Question: Millstream Brewing was founded in what county?
Sentence (from "Amana Colonies"): The Amana Colony is seven villages on 26000 acres located in Iowa County in east-central Iowa, United States: Amana (or Main Amana), East Amana, High Amana, Middle Amana, South Amana, West Amana, and Homestead.
Relevant evidence: Yes