BLM approves expansion of zeolite mines in southwest Idaho
MARSING, Idaho—The Bureau of Land Management approved expansions of about six acres each to increase production of the PDZ and Teague zeolite mines near Jordan Valley in Owyhee County.
These expansions support President Trump’s Executive Order 14241, “Immediate Measures to Increase American Mineral Production.” Both mines were established about 20 years ago. The expansions will allow for additional extraction, road improvements, and material storage space.
Zeolite is a mineral made up of mostly aluminum and silicon that occurs naturally in volcanic rock. It is microporous, or full of tiny holes, and is used commercially as an absorbent or catalyst for water purification and softening, air filtration systems, laundry detergent, nuclear and solar energy processing, cat litter, diapers, blood clotting, and cattle feed. Fun fact, the term “zeolite” comes from the Greek word “to boil,” as the water absorbed by the mineral produces a lot of steam when heated.
The BLM offered a public comment period on the amendments to the mine plans of operation in April 2025. Additional information on the expansions is available at the PDZ and Teague BLM National NEPA Register project websites.
For more information, please contact BLM Geologist Heather Casares at [email protected] or 208-896-5912.
The BLM manages about 245 million acres of public land located primarily in 12 western states, including Alaska, on behalf of the American people. The BLM also administers 700 million acres of sub-surface mineral estate throughout the nation. Our mission is to sustain the health, diversity, and productivity of America’s public lands for the use and enjoyment of present and future generations.