Do You Know Where You Can Dig for Fossils? Arkansas is known for its diamond mine where you can dig for diamonds but did you know that in Mineral Wells Texas you can dig for ancient fossils? Mineral Wells Fossil Park is the perfect family fun adventure for this Spring or Summer. Mineral Wells Fossil Park will bring the Indiana Jones or Luara Croft right out of you. Fossils found here date back to just over 300 million years old, best of all, whatever you find you can take home for personal use only. Managed by the Mineral Wells Parks and Recreation and in association, with the Dallas Paleontological Society, your family will truly enjoy collecting well-preserved "Pennsylvania Period."