Featured in this lot is this Philipsburg Montana USGS geological atlas circa 1915. This is a geological atlas of Livingston, Montana and includes information, such as descriptions, topography, aerial geology, economic geology, structure sections, and columnar sections. The condition of this atlas is good with some browning to the pages due to the age of the atlas but otherwise shows good overall condition. The measurements of this atlas is 21 3/4" x 18 1/2".