USA & Canada – Aggregate Map

Base Map Layer Medium Soft Map Layer Medium Map Layer Hard Map Layer Medium Hard Map Layer Soft Map Layer
These basic aggregates are found throughout the United States and Canada as noted on the map in the areas shown.

Click an aggregate below to change the map.

  • 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

  • *Reset All Aggregates Layers on Map
*This map is meant to be a general reference and guidepoint only. Other types of aggregate can be found in many parts of the United States and Canada.