Colorado Goldfields Inc. Obtains Approval From State of Colorado for Silver Wing Mine; A Potential $200 Million Silver and Copper Value

LAKEWOOD, CO, Dec 20, 2011 (MARKETWIRE via COMTEX) — Colorado Goldfields Inc. (otcqb:CGFIA) (pinksheets:CGFIA) announced today that the Colorado Division of Reclamation Mining and Safety (“Division”), has approved its application to begin work at the Silver Wing Mine. The formal name of the application is “Notice of Intent to Conduct Prospecting Activities.” The application was approved on November 18, 2011 and is the third consecutive approval of a permit received by the Company from the Division.

Activities to be completed under this initial approval of work at the Silver Wing Mine will include re-sampling key areas of the mine by taking approximately 250 channel samples to verify records of sample data taken by prior operators and consultants. In preparation for drilling, work will also include the verification of underground mine maps, evaluation of prior underground development work and the condition of existing workings. This information will be utilized to develop an on-going core drilling program and an initial mining plan.

The approval of this project is particularly significant because it allows for an investigation to be made to determine the source of the existing mine drainage of approximately 20 gallons per minute and evaluate the potential for controlling or eliminating this discharge with an underground grouting program which could avoid the need for a discharge permit. If it is determined that the discharge cannot be eliminated, then an evaluation will be made of what actions can be taken to minimize the discharge, and assuming a permit is required, what permit conditions would be most effective and appropriate for preventing discharges of pollutants into the Animas River.

“Colorado Goldfields is working to find the best way to address a very long-term, pre-existing problem. The approval by the Division of this work, I believe shows confidence in our expertise and reinforces in real terms the Company’s commitment to proper and careful mining in the area,” stated Stephen Guyer, CFO for Colorado Goldfields.

The Silver Wing Mine consists of 10 patented mining claims across 70 acres in San Juan County, in southwestern Colorado known as the Silver Wing Mine.

“A thorough study of geological structures, past production, core drilling and extensive underground sampling records indicates that the total resource of the Silver Wing Mine could exceed $200 million with approximately 80% of the resource value composed of silver and copper minerals,” stated Lee Rice, President & CEO for Colorado Goldfields.

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About Colorado Goldfields Inc. Colorado Goldfields Inc. (otcqb:CGFIA) ( http://www.cologold.com ) is a Denver-based junior exploration and mining company primarily exploring for gold and silver. Our seasoned management team targets historic gold camps with strong potential for multiple deposit discoveries. Currently, our business model in Colorado provides an outstanding combination of former producing properties with excellent exploration and production potential and a currently inactive, modern, up to 700 ton per day capacity mill facility to allow for an attractive short-term production time frame. We expect that this strategic plan will allow Colorado Goldfields to reach its goal of profitability, potentially within the next 18 months.

The Company has made available a current CGFIA Fact Sheet in PDF format at http://www.cologold.com/uploads/CGFIFactSheet.pdf .

Notice regarding forward-looking statements This news release may contain forward-looking statements or information within the meaning of the United States Private Securities Litigation Reform Act of 1995. Forward-looking statements or information includes statements regarding the expectations and beliefs of management. Forward-looking statements or information include, but are not limited to, statements or information with respect to known or unknown risks, uncertainties and other factors which may cause the actual results, performance or achievements of the Company to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements or information. Forward-looking statements or information are subject to a variety of risks and uncertainties which could cause actual events or results to differ from those reflected in the forward-looking statements or information, including, without limitation, risks and uncertainties relating to obtaining financing to meet the Company’s exploration program and operating costs during its exploratory stage, the interpretation of exploration results and the estimation of mineral resources and reserves, the geology, grade and continuity of mineral deposits, the possibility that future exploration, development or mining results will not be consistent with the Company’s expectations, accidents, equipment breakdowns, title matters, or other unanticipated difficulties with or interruptions in production and operations, the potential for delays in exploration or development activities or the completion of feasibility studies, the inherent uncertainty of production and cost estimates and the potential for unexpected costs and expenses, commodity price fluctuations, currency fluctuations, regulatory restrictions, including the inability to obtain mining permits and environmental regulatory restrictions and liability, the speculative nature of mineral exploration, dilution, competition, loss of key employees, and other risks and uncertainties, including those described under “Risk Factors” in the Company’s Annual Report on Form 10-K filed on November 23, 2011, which is on file with the Securities and Exchange Commission at http://www.sec.gov/Archives/edgar/data/1344394/000095012311100285/0000950123-11-100285-index.htm , as well as the Company’s other SEC filings. Should one or more of these risks and uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those described in forward-looking statements. Accordingly, readers are advised not to place undue reliance on forward-looking statements or information. The Company does not undertake any obligation to release publicly revisions to any “forward-looking statement,” to reflect events or circumstances after the date of this news release, or to reflect the occurrence of unanticipated events, except as is required under applicable securities laws.

Cautionary note to U.S. Investors — The United States Securities and Exchange Commission permits U.S. mining companies, in their filings with the SEC, to disclose only those mineral deposits that a company can economically and legally extract or produce. We use certain terms on this website (or press release), such as “measured,” “indicated,” and “inferred” “resources,” which the SEC guidelines strictly prohibit U.S. registered companies from including in their filings with the SEC. U.S. Investors are urged to consider closely the disclosures in our 10-K which may be secured from us, or from the SEC’s website at http://www.sec.gov/Archives/edgar/data/1344394/000095012311100285/0000950123-11-100285-index.htm , his press release may contain information about adjacent properties on which we have no right to explore or mine. We advise U.S. investors that the SEC’s mining guidelines strictly prohibit information of this type in documents filed with the SEC. U.S. Investors are cautioned that mineral deposits on adjacent properties are not indicative of mineral deposits on our properties.