CHAPTER III. 
GEOGRAPHY OF LEAD AND ZINC ORES. 
GENERAL. 
THE different portions of the world producing lead and zinc 
have been given already in the historical quotations from 
Winslow. To make this more easily understood, the accom- 
panying map of the world, plate I, is added, on which the 
locations of productive mines are marked in red, as explained 
in the map legend. It will be observed that while almost all 
countries are productive, yet the great bulk of production 
comes from comparatively small areas in the United States, 
Great Britain and those parts of Europe directly connected 
with the northern slope of the Alps mountains. 
United States, 
In the United States, as shown on plate II, lead and zine 
are pretty well distributed. No less than thirty states and 
territories have produced either lead or zinc in greater or less 
quantities. They extend from Maine to California, and from 
Texas to Montana. The greatest production is in the Mis- 
sissippi valley and in the Rocky Mountain region. 
Usually, the two metals are associated in the same district, 
often in the same immediate locality, and not unfrequently in 
the same individual mine. 
Kansas. 
Plate III shows the different places in Kansas where lead 
and zinc ores have been found. It was not attempted to give 
a quantitative expression here, but rather to show the wide- 
spread distribution of the areas throughout the eastern part 
of the state. Commercially the ores are. confined to a very 
small area in Cherokee county, and in the extreme southeast 
corner of that. But sufficient ores have been found else- 
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