Colorado Goldfields Inc. Launches NI 43-101 'Property of Merit' Project for Utah Uranium Claims -- Valuation Estimate Increases to $50 Million -- Part 1 Gold Stocks

LAKEWOOD, CO -- (Marketwire) -- 09/21/11 -- Colorado Goldfields Inc. (OTCQB: CGFIA) (PINKSHEETS: CGFIA) announced today that the Company has launched an aggressive exploration project to determine the potential value of its 63 uranium claims.

On June 29, 2011, Colorado Goldfields announced that it had purchased the Pay Day and Rage claims. These claim groups consist of 63 (55 Pay Day and 8 Rage) claims. The Pay Day claim group is located in Township 32 South, Range 24 East of the Salt Lake Meridian in Sections 26, 27, 34, and 35, in San Juan County northeast of Monticello, Utah. The Rage claim group spans Stevens Canyon on the southeast flank of the Seven Sisters Buttes in Township 33 South, Range 20 East of the Salt Lake Meridian in Section 33, San Juan County, Utah. Both claim groups have been plotted on USGS topographic maps as shown.

Colorado Goldfields' Pay Day Claims Topo Map

Based upon the preliminary geological report and information from the Atomic Energy Commission, the seller of the properties extrapolated a resource estimate of 45,000 tons of uranium bearing ore. The uranium content averages 0.27% which is 5.4 pounds per ton, yielding 243,000 pounds. On May 30, 2011, the spot market price for uranium was $57.50 per pound. Therefore, the total estimated value of the uranium content would be $13,972,500.

An initial internal analysis by Company president Lee R. Rice indicates that the historical information used by others did not account for all possible sources and additional potential resource at depth. For that reason, we have engaged Allan P. Juhas, Ph.D. in Economic Geology, University of Manitoba 1973, to undertake the preparation of an NI43-101 technical report based upon the Company's exploration plan and previous work that can be verified. Dr. Juhas has over 50 years experience in a broad spectrum of precious metals and base metals geological pursuits. He is well recognized in the industry, and prepares a number of NI43-101 reports each year.

National Instrument 43-101 ('NI43-101') is a mineral resource classification and reporting medium used for the public disclosure of information relating to mineral properties in Canada. The NI43-101 is a strict guideline for how public companies can disclose scientific and technical information about mineral projects on bourses supervised by Canadian Securities Administrators. Furthermore, the NI43-101 has become the de facto standard for almost all public mining companies.

'Our objective is to establish an NI43-101 compliant resource for our Utah Properties, which we believe will be significantly greater than the information that has been gathered to date,' stated Lee Rice, President of 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-KSB filed on December 27, 2007, and as amended on March 3, 2008, which is on file with the Securities and Exchange Commission, 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-KSB which may be secured from us, or from the SEC's website at http://www.sec.gov/edgar.shtml. This 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.

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Contact:
Investor Relations

Colorado Goldfields Inc.

866-579-9444

or 303-984-0524
http://www.cologold.com

Colorado Goldfields' Rage Claim Topo Map