CLYDE PARK, Mont. — A new golf course at Crazy Mountain Ranch has ignited a fierce dispute over water rights in the Shields Valley, an agricultural region long resistant to the luxury real estate boom transforming neighboring communities.Local ranchers allege…

CLYDE PARK — Tim Sundling remembers when he first heard developers discuss plans for a golf course in Shields Valley, an agricultural area below the Crazy Mountains that’s resisted the real estate boom consuming glitzy, amenity-rich communities across the county…