TY - RPRT TI - Map showing exposures of limonitic rocks and hydrothermally altered rocks in the Dillon 1 degree by 2 degrees Quadrangle, Idaho and Montana AU - D. B. Segal AU - L. C. Rowan PY - 1989 DO - 10.3133/i1803a UR - https://pubs.usgs.gov/publication/i1803A ID - i1803A ER -