BLM seeks input on Iron Mountain Quarry Expansion Environmental Assessment
CAÑON CITY, Colo. – The Bureau of Land Management Royal Gorge Field Office has opened a 30-day public comment period to receive public input on the Iron Mountain Quarry Expansion Environmental Assessment. The public comment period will end April 29, 2026.
The proposed expansion includes the addition of 37.69 acres of mineral resources for a total of 46.89 acres of BLM managed lands, all accessed off Iron Mountain Road in Fremont County. The proposed expansion would extend existing quarry operations by an additional 15 to 30 years without increasing production, traffic or workforce levels.
Mining progression is designed as a phase operation with a minimum production rate of 10,000 tons and a maximum production rate of 70,000 tons. Based on the lowest mining depth of 7,522 feet, the total reserves for all phases are approximately 2.2 million net tons (1.7 million cubic yards). Reclamation occurs throughout all phases of the mining process.
Public comments will be received solely through the project’s ePlanning documents page. In-person or emailed comments will not be considered. For more information, visit the project’s ePlanning page or contact the Royal Gorge Field Office at 719-269-8500.
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.