Aggregate Map - Documentation

Aggregate Map for U.S.A & Canada

Base Map Layer Medium Soft Map Layer Medium Map Layer Hard Map Layer Medium Hard Map Layer Soft Map Layer
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

    Soft Limestone, Sandstone, Dolomite Limestone, Siliceous, Soft Shell

  • Medium Soft

    Pit Gravel, Limestone, Dolomite

  • Medium

    Medium Hard River Rock, Medium Traprock, Decomposed Granite, Medium Crushed Gravel

  • Medium Hard

    Granite, Slate, Traprock, Basalt, Quartzite

  • Hard

    Hard Chert, Quartz, Flint Rock, Hard River Rock

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