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Cross & Caribou Mines

The purpose of this page is to supply the public with information on the Cross & Caribou Mines that is clear, concise, and factual, as well as providing proper contact information to help address questions to the proper channels. While the Town of Nederland will be kept in the loop with information regarding the mines, we are NOT the authority in the matter.

Who to Contact


Potential Mining Violations

Concerns about Water Quality

Land Use Issues


Collaborative Meeting between the Nederland & Boulder County on the Cross & Caribou Mines

On January 25th, 2022, the Nederland Board of Trustees, along with Boulder County Community Planning & Permitting and Boulder County Public Health, held a joint meeting to discuss and answer questions regarding the Cross & Caribou Mines.

Response from Grand Island resources

This is Grand Island Resources' official response about the Cross & Caribou Mines. You can click on the image for a higher-resolution version of it, and the text of the letter can be found below.

The views and content of the following letter are those of GIR and do not represent the official position of the Town of Nederland. Information within is presented as received and has not been verified or endorsed.

Grand Island Resources Letter Text

Dear Friends and Neighbors,

As a member of the Boulder County community, Grand Island resources (GIR) recognizes the impact our mining operations at the Cross and Caribou Mines, located in Nederland, CO, can have on the environment. Like our first and former President of three years, Tom Hendricks, we at GIR are committed to clean water, clean air, and a cleaner earth. As we have transitioned from the untimely death of our beloved friend "Miner Tom" and through COVID-19 supply disruptions, we have addressed and embraced challenges we have faced, devoting time and millions of dollars cleaning up and upgrading our infrastructure and facilities.

Recent replacement of a 50-year-old antiquated, passive water treatment system with a 21st century $150,000 state-of-the-art system featuring post-filtration, polishing media to extract or neutralize dissolved metals. This system meets or exceeds strict state and federal aquatic life standards.

The above standards are more stringent than the EPA's National Primary Drinking Water Regulations and out of eleven exceedances over the past twenty months, which were in parts per billion, all eleven met drinking water standards.

We continue to clean, fix, and repair existing infrastructure and facilities and we will not resume operations until we are certain all applicable safety and environmental standards can be met.

Multiple scientific and engineering studies on effective groundwater discharge treatment have been commissioned and we are actively working towards implementing the best solutions available.

We are moving as quickly as science, engineering, and supply logistics allow to upgrade the rest of our equipment and facilities to protect the citizens of Boulder County and the environment.

GIR currently generates three million dollars a month of economic activity in the Town of Nederland and surrounding areas helping local businesses survive in this unpredictable and trying time.

GIR and its predecessors have a 50-year history of community involvement and charitable outreach.

We continue to employ private capital to clean up existing contaminated mine tailings and to operate our hard rock mines in an environmentally responsible fashion.

GIR is fully engaged with federal, state, and local agencies, including Colorado's Water Quality Control Commission (WQCC), the Division of Reclamation, Mining and Safety (DRMS) and the Colorado Department of Public Health & Environment (CDPHE).

We look forward to continuing and enhancing our existing partnerships with local universities and our work with federal, state, and local government regulators.

GIR adheres to the highest standards of Environmental, Social, and Corporate Governance (ESG) criteria as we strive to make Colorado's mining industry cleaner and more compatible than it has ever been with the environment and the people who live nearby.

We believe that the above initiatives have a positive impact on the local environment and create a more enjoyable place for all of us who live, work, and play in our county and great state.

Daniel Takami, President
Grand Island Resources
PO Box 3395, Nederland, CO 80466

Mined Land Reclamation Board Board Order

On February 18, 2022 the Mined Land Reclamation Board signed the following Board Order for Finding of Fact, Conclusions of Law, and Order for File No. M-1977-410, MV-2021-017, regarding Grand Island Resources LLC. You can download the whole document by clicking the picture to the left, or by clicking the link below:

Read the Board Order Here