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Iowa

West Branch Floyd River near Sioux Center

Fossil site Documented sitePermission required

What you could find

Reported finds from this ground.

Crystals and mineralsCrystals and minerals

Also reported: bison skulls and jaws, possible mammoth tusk tip.

Photos via Wikimedia Commons: Stephanie Clifford from Arlington, VA, USA (CC BY 2.0).

Why this spot

Late Pleistocene to Holocene

In September 2020 a Dordt University student collected two totes of bison bone and a possible mammoth tusk tip from the shallow West Branch of the Floyd River during very low water.View source →

Before you go

Hazards noted for this site.

soft banks, private land

Keep exploring nearby

More spots in this area.

Check access and collecting rules for each site.