LEGEND 
State boundary 
 
County boundary 
 
0 Capital 
 
. City 
 
_______ Crushed stone/sand a gravel districts 
 
MINERAL SYMBOLS ~.9.m Cement plant 
 
Clay Clay 
 
Cs Crushed Stone 
 
D—L Dimension Umestone Gyp Gypsum 
 
He Helium 
 
VA Volcanic Ash 
 
S Sulfur 
 
Salt Salt 
 
SG Sand and Gravel 
Principal Mineral—Producing Localities