USGS Map I-781-B Generalized Slope Map of the Henrys Lake Quadrangle, Idaho & Montana, 1972 by Irving J. Witkind. Scale 1:62,500. Map shows areas of Higher Slopes by Color Coding, includes Chart with description of slope work. Map is used but is in very good condition. Map has writing on outer sleeve. See photos for details of condition. Thanks For Looking.