This document summarizes environmental and health data for two large, open-pit, cyanide heap leaching, gold mines located adjacent to the Fort Belknap Reservation in Montana. This public health assessment is a review of information about hazardous substances at the Zortman-Landusky mine and it evaluates whether exposure to these substances might cause any harm to people. Topics that are discussed include the history and background of the Zortman-Landusky mine, environmental contamination data illustrated with detailed tables, and public health information.
