Herkimer Diamond Mine (HDM) Open to the Public
Click next to see public mine
The Best Site on the Internet for Herkimer Diamond Information - A Collaborative Project.
The information, and photography, on this website is copyright protected by W. David Hoisington, Ph. D.
unless another author/photographer is cited.
Herkimer Diamond Mine (HDM)
Take Rt 28 north from
Herkimer, NY and look for
the KOA campgrounds on
the left and the store on the
right, which is slighty up a
hill and set back from the
Welcome to the New Herkimer Diamond Story!
Return often and follow this developing story. Refresh your
browser (right click) to see new updates
What’s New was last updated
Contribute to Herkimer
Diamond research and
have your name below!