Aggregate Map for U.S.A & Canada
These are the basic aggregates found in the shown areas. Other types of aggregate can be found in many parts of the U.S. and Canada.
Click on one of the aggregates below to take a closer look.
Soft Limestone, Sandstone, Dolomite Limestone, Siliceous, Soft Shell
Pit Gravel, Limestone, Dolomite
Medium Hard River Rock, Medium Traprock, Decomposed Granite, Medium Crushed Gravel
Granite, Slate, Traprock, Basalt, Quartzite
Hard Chert, Quartz, Flint Rock, Hard River Rock
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