芦花沟是岷江水系黑水河中游右岸一级支流，历史上曾多次暴发泥石流，对黑水县城芦花镇造成了严重的危害和威胁。
Luhua gully is a branch of middle reaches of Heishui River in Minjiang River system , a great number of debris flows result in serious damage and threat in Luhua Town of Heishui County .
黑水镇