Help Glenwood Springs prevent future mining at the Transfer Trail limestone quarry

The Glenwood Springs area community and those who visit stand together to oppose future mining at the Transfer Trail limestone quarry.

What’s going on now:

An official decision issued by the U.S. Department of Interior in 2025 forced Rocky Mountain Industrials (RMI) to stop mining operations.

RMI is now seeking approval from the U.S. Bureau of Land Management for a new mining permit. It asks for:

  • Expansion of the mine from the current size of 16 acres to 56 acres, extending hundreds of feet upslope.
  • A mineral materials sales contract to sell limestone aggregate from the expanded mine.

What happens next:

BLM will conduct a technical review to identify impacts of the proposal to other resources, such as groundwater and wildlife habitat.

After the technical review is complete, BLM will launch a public review process of the permit application.

Simmering in the background:

Don't Mine Glenwood Springs

Increased reclamation bond for quarry site

Increased reclamation bond for quarry site

The Colorado Division of Reclamation, Mining & Safety (DRMS) is the lead agency to oversee reclamation of the site. In March 2026, DRMS increased the reclamation bond to $1.2 million, to be paid in full by March 2027.

RMI’s future plans for a massive limestone mine

RMI’s future plans for a massive limestone mine

Rocky Mountain Industrials still holds 44 unpatented mining claims under the existing quarry and running up the mountainside. It may attempt to revive its 2019 proposal to further expand the quarry.

Permanent protection to prevent more mining

Permanent protection to prevent more mining

The mine expansion poses unacceptable threats to the Glenwood Springs community. Because we value the environment and our quality of life, our aim is to stop the mine expansion for good.

The quarry is on federal public lands

The quarry site and RMI’s mining claims are on public lands managed by the U.S. Bureau of Land Management (BLM).

These are OUR public lands. We have a say in what happens!

 

The Glenwood Springs community is united in opposition.

Please join us in this cause to protect our community, our economy and our environment.

Sign our online endorsement here.

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