This elephant folio atlas contains 36 geologic maps and was inteded to accompany the 746 page monograph "The Marquette Iron-Bearing District of Michigan." The lengthy report (not included) was the first systematic attempt to examine the geological structure of this iron-rich region of the Upper Peninsula of Michigan, covering a 35 mile stretch from Marquette to Lake Michigamme. The atlas consists of a large index map and 35 detailed sheets, each displaying the geological features in vivid color including iron, granite, slate, and quartzite to name a few. Each sheet is accompanied by geological sections and a legend at bottom. Hardbound in green cloth with gilt title on the front cover.

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Condition: B+

The plates are near fine with a hint of pleasant light toning. The front free endpaper is loose and both hinges are starting. Covers have light wear, soiling, and the edges are bumped.