“…Harrison and Cressman (1993) mapped the distribution of glacial deposits in northwest Montana at a scale of 1:125,000 as part of their study of the Libby Thrust Belt, but they did not discuss the glacial deposits in detail. Boettcher and Wilke (1978) mapped the lake-bottom deposits in the Libby area at a scale of 1:48,000 as part of a ground-water investigation. Two geologic maps in the Bonners Ferry, Idaho area provide insight to the history of Glacial Lake Kootenai: (1) a 1:24,000-scale map of the Elmira Quadrangle (Lewis et al 2007), and (2) a 1:100,000-scale map of the Bonners Ferry quadrangle (Miller and Burmester 2003).…”