Ausgewählte Achatfundstellen in den Vereinigten Staaten von Amerika -
Some Selected Agate Locations in the United States
ARIZONA
IDAHO
MONTANA
Bighorn Area - Dryhead Agate Mine
NEW MEXICO
OREGON
Ashwood - Polka Dot Agate Mine
Ochoco Mountains, Fallen Tree Mine
Richardson Ranch (Priday Agate Beds), Madras
SOUTH DAKOTA