Geological Sketch Map of The World By J. G. Berhaus, Marcou, and other Authorities...
While geology was still a growing and evolving science, this map gives a good foundational understanding for world and that based on some of the best resources of the time. Illustrating 7 different formations, it also includes large "regionas Geologically unknown" and are left to be white.
Condition is very good. Image size is approximately 12.5 x 16 (inches)
