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Mammoth Samples Up to 23.6 Grams Per Tonne Gold at Its Tenoriba Property, Mexico

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TORONTO, ONTARIO -- (Marketwire) -- 01/21/13 -- Mammoth Resources Corp. (TSX VENTURE: MTH) is pleased to report that it has received assay results from samples taken from its first two exploration campaigns by its geological team exploring the company's Tenoriba Property, located in the prolific Sierra Madre precious metal belt in south western Chihuahua state, Mexico (refer to the company's web site www.mammothresources.ca, for a detailed location map). The best result from this campaign assayed 23.6 grams per tonne (gpt) gold and 62.1 gpt silver, or 24.84 gpt gold equivalent (using a ratio of 50 gpt silver is equivalent to 1.0 gpt gold based on current gold and silver prices). This single highest gold assay was followed by 26 other samples that exceeded more than 2.0 gpt gold equivalent, 45 results that exceeded 1.0 gpt gold and 85 samples that were anomalous exceeding 0.3 gpt gold equivalent, of a total of 219 samples collected. Furthermore, many of these samples came from areas where mapping and sampling of similarly altered felsic volcanics and breccia with numerous locations of vuggy silica occurred as much as one kilometre to the northeast and to the southwest of the area of focused exploration and drilling by the previous optionor, Masuparia Gold Corporation (Masuparia), where Masuparia assayed up to 45 grams per tonne gold (please refer to press release dated July 3, 2012 for summary results of the Masuparia work).

Mammoth President and CEO, Thomas Atkins, commented on these assay results, stating: "I was impressed with the rocks I saw in the field when I visited the project only a month ago, in December. That we received so many samples with anomalous values of gold, and some with very impressive values, is very exciting. Many of these results are coming from areas that extend beyond the attractive results achieved by Masuparia in their 2007 - 2008 program where attractively altered and silicified volcanic rocks returned up to 45 grams per tonne gold. We also expect to receive results shortly from our clay mineral analysis work wherein 44 samples have been sent for XRF analysis to determine the nature and relationship of clay minerals to hydrothermal processes in these rocks. The team are just now returning to the project to continue their field exploration work and will continue to extend their mapping and sampling as they step-out further along the trend sampled and reported in this release and attempt to identify geological controls for this mineralization. I look forward to reporting on this work in the coming weeks."

The 219 surface rock samples and 7 stream sediments samples taken to date have been collected over selected accessible portions of an approximate 12 square kilometre area (an approximate 3 kilometre by 4 kilometre area). In addition, 44 surface and core samples have been selected for Xray Fluorescence analysis to identify the type of clays present in the altered Tertiary felsic volcanic. Identification of these clay alteration types will help to identify the type of mineralization system (high, or possibly low-sulphidation, or porpyritic epithermal-type) present at Tenoriba.

Overall, the field work to date has confirmed Masuparia's previous geological observations, including the presence of a large area extending over numerous square kilometres of altered Tertiary felsic volcanics intruded by diorite, quartz monzonitic and quartz feldspar intrusives. Unsorted volcanic breccias have been observed by the Mammoth team to be much more common throughout the volcanic pile than previously reported.

Summary Table of Assay Results Exceeding 2.0 gpt Gold Equivalent (a complete table of results assaying above 0.3 gpt gold equivalent are presented in Table 1 attached to this release)---------------------------------------------------------------------------- Sample Interval/Sample Sample Area Au Ag Au EqNumber Method (m) (gpt) (gpt) (gpt)----------------------------------------------------------------------------330002 chip 0.4 23.60 62.1 24.84----------------------------------------------------------------------------330003 chip 0.6 3.74 12.3 3.99----------------------------------------------------------------------------330006 grab 8.36 18.4 8.73----------------------------------------------------------------------------330014 grab 6.17 7.8 6.33----------------------------------------------------------------------------330015 grab 1.0 x 2.5 0.37 235.0 5.07----------------------------------------------------------------------------330028 dump 4.33 2.7 4.38----------------------------------------------------------------------------330043 chip 0.4 1.05 42.9 1.91----------------------------------------------------------------------------330044 chip 1.0 1.16 39.7 1.95----------------------------------------------------------------------------330045 chip 1.5 0.53 51.9 1.57----------------------------------------------------------------------------330046 chip 1.5 0.70 63.0 1.96----------------------------------------------------------------------------330068 chip 1.5 1.04 30.0 1.64----------------------------------------------------------------------------330071 chip 1.5 1.67 68.2 3.03----------------------------------------------------------------------------330108 chip 1.5 0.62 97.0 2.56----------------------------------------------------------------------------330143 grab 0.77 106.0 2.89----------------------------------------------------------------------------330149 grab 5.71 4.0 5.79----------------------------------------------------------------------------330168 grab 1.61 24.2 2.09----------------------------------------------------------------------------330177 chip 1.0 11.90 15.5 12.21----------------------------------------------------------------------------330186 chip 1.7 3.50 44.1 4.38----------------------------------------------------------------------------330187 chip 1.0 5.10 42.3 5.95----------------------------------------------------------------------------330189 chip 1.0 1.75 42.1 2.59----------------------------------------------------------------------------330192 chip 1.0 1.40 29.6 1.99----------------------------------------------------------------------------330197 chip 1.5 3.84 8.6 4.01----------------------------------------------------------------------------330199 chip 1.0 2.16 17.1 2.50----------------------------------------------------------------------------330201 chip 1.0 2.17 11.2 2.39----------------------------------------------------------------------------330203 chip 0.6 1.21 68.5 2.58----------------------------------------------------------------------------330226 chip 1.5 2.12 36.5 2.85----------------------------------------------------------------------------TEN-12 chip 1.5 2.83 36.8 3.57----------------------------------------------------------------------------



Mammoth's mapping has identified additional granodioritic and quartz feldspar porphyritic intrusive bodies situated south west of Masuparia's previous mapped area and steeply to moderately dipping north, northeast and northwest striking structural trends which appear to control the higher gold values. Over the Metalito and El Moreno areas (areas of small artisanal exploration and mining to the north and west, respectively of Masuparia's area of focused exploration) and in the Carneritos area (refer to figure 1. Sample Location Map), rocks with the strongest silicification exhibit patchy vuggy silica texture which could be hydrothermal in origin. Numerous areas with a concentration of vuggy silica float are also observed throughout these areas. In addition, our work has also identified the presence of minor white clay stringers of apparent hydrothermal origin in Masuparia's diamond drill core and in two areas (El Moreno and Los Carneritos), situated 0.7 kilometres west and 1.2 kilometres northeast of Masuparia's drill area, respectfully. The presence of Alunite and/or Dickite clay stringers and hydrothermal vuggy silica could be indicative of an epithermal high sulphidation target exists at Tenoriba such as those hosted at Alamos Gold's Mulatos deposit (wherein following commercial production in 2006 the asset is estimated to produce on average of approximately 150,000 ounces of gold per year and still has approximately 2.0 million ounces of gold resource) and Gold Corp's El Sauzal deposit (which to date has produced approximately 1.5 million ounces of gold).

Mammoth Resources will be at the Cambridge House Vancouver Resource Investment Conference commencing Sunday, January 20 through Monday, January 21st - Booth 1911. The company will also, along with two other companies be hosting a free luncheon presentation for those interested in learning more about the company and its projects. Please visit our website for luncheon details.

About Mammoth Resources:

Mammoth Resources (TSX VENTURE: MTH) is a mineral exploration company focused on acquiring and defining precious metal resources in Mexico and other attractive mining friendly jurisdictions in the Americas. The Company has an option to acquire 100% each of the Urique and the Tenoriba Properties, both of which are located in the Sierra Madre Precious Metal Belt in southwestern Chihuahua State, Mexico. The company continues to seek other option agreements in the Americas on other properties it deems to host above average potential for economic concentrations of precious metals mineralization.

Qualified Person / Quality Controls:

Richard Simpson, P.Geo., Vice-President Exploration for Mammoth Resources Corp. is Mammoth's Qualified Person, according to National Instrument 43-101, for the Urique property and is responsible for any technical data mentioned in this news release. Samples were prepared and analyzed by ALS CHEMEX in their facilities in Mexico and Canada, respectively or IPL Inspectorate in their facilities in Mexico and Vancouver, respectively. Samples generally consisted of 1-3 kilograms of material. Gold analyses were performed by 30 gram fire assay with an Atomic Absorption finish. Silver, copper, lead and zinc were analyzed as part of a multi-element ICP package using an aqua regia digestion. Over limit samples with greater than one percent copper, lead and zinc were re-analyzed using ore grade detection limits.

To find out more about Mammoth Resources and to sign up to receive future press releases, please visit the company's website at www.mammothresources.ca.

Forward-Looking Information: This news release may contain or refer to forward-looking information. All information other than statements of historical fact that address activities, events or developments that the Company believes, expects or anticipates will or may occur in the future are forward-looking statements; examples include the listing of its shares on a stock exchange and establishing mineral resources. These forward-looking statements are subject to a variety of risks and uncertainties beyond the Company's ability to control or predict that may cause actual events or results to differ materially from those discussed in such forward-looking statements. Any forward-looking statement speaks only as of the date on which it is made and, except as may be required by applicable securities laws, the Company disclaims any intent or obligation to update any forward-looking statement, whether as a result of new information, future events or results or otherwise. Although the Company believes that the assumptions inherent in the forward-looking statements are reasonable, forward-looking statements are not guarantees of future performance and, accordingly, undue reliance should not be placed on these forward-looking statements due to the inherent uncertainty therein.

To view Figure 1, please visit the following link: http://media3.marketwire.com/docs/mth0121fig1.pdf.

Table 1. Assay Results (all assays above 0.3 gpt Gold Equivalent)---------------------------------------------------------------------------- Sample Interval/Sample Sample Area Au Ag Au EqNumber Method (m) (gpt) (gpt) (gpt)----------------------------------------------------------------------------330002 chip 0.4 23.60 62.1 24.84----------------------------------------------------------------------------330003 chip 0.6 3.74 12.3 3.99----------------------------------------------------------------------------330004 chip 1.0 0.71 2.8 0.76----------------------------------------------------------------------------330006 grab 8.36 18.4 8.73----------------------------------------------------------------------------330007 chip 0.7 0.58 8.6 0.75----------------------------------------------------------------------------330010 chip 1.6 0.44 3.8 0.52----------------------------------------------------------------------------330011 grab 0.5 x 0.4 0.62 32.7 1.27----------------------------------------------------------------------------330013 grab 1.29 10.9 1.50----------------------------------------------------------------------------330014 grab 6.17 7.8 6.33----------------------------------------------------------------------------330015 grab 1.0 x 2.5 0.37 235.0 5.07----------------------------------------------------------------------------330016 grab 2.0 x 2.0 0.83 10.4 1.04----------------------------------------------------------------------------330017 grab 2.0 x 2.0 0.32 4.6 0.42----------------------------------------------------------------------------330019 chip 1.5 0.46 0.5 0.47----------------------------------------------------------------------------330028 dump 4.33 2.7 4.38----------------------------------------------------------------------------330040 grab 0.7 x 0.7 0.64 10.2 0.85----------------------------------------------------------------------------330041 chip 1.0 0.65 36.2 1.37----------------------------------------------------------------------------330042 chip 0.4 0.80 38.4 1.57----------------------------------------------------------------------------330043 chip 0.4 1.05 42.9 1.91----------------------------------------------------------------------------330044 chip 1.0 1.16 39.7 1.95----------------------------------------------------------------------------330045 chip 1.5 0.53 51.9 1.57----------------------------------------------------------------------------330046 chip 1.5 0.70 63.0 1.96----------------------------------------------------------------------------330047 chip 1.5 0.39 1.8 0.43----------------------------------------------------------------------------330048 chip 1.5 0.62 1.6 0.65----------------------------------------------------------------------------330049 chip 1.5 0.46 2.4 0.51----------------------------------------------------------------------------330051 chip 1.7 0.41 16.4 0.73----------------------------------------------------------------------------330054 chip 1.0 0.42 0.4 0.43----------------------------------------------------------------------------330068 chip 1.5 1.04 30.0 1.64----------------------------------------------------------------------------330069 chip 1.5 0.30 17.3 0.65----------------------------------------------------------------------------330071 chip 1.5 1.67 68.2 3.03----------------------------------------------------------------------------330080 grab 0.57 11.9 0.81----------------------------------------------------------------------------330108 chip 1.5 0.62 97.0 2.56----------------------------------------------------------------------------330110 chip 1.0 0.32 5.6 0.44----------------------------------------------------------------------------330129 chip 1.5 0.35 43.1 1.22----------------------------------------------------------------------------330143 grab 0.77 106.0 2.89----------------------------------------------------------------------------330149 grab 5.71 4.0 5.79----------------------------------------------------------------------------330151 grab 1.04 1.5 1.07----------------------------------------------------------------------------330152 chip 0.9 0.58 33.4 1.25----------------------------------------------------------------------------330153 chip 0.9 0.57 38.9 1.35----------------------------------------------------------------------------330154 chip 1.5 0.56 35.5 1.27----------------------------------------------------------------------------330155 chip 1.5 0.41 35.6 1.12----------------------------------------------------------------------------330156 chip 1.4 0.31 2.6 0.36----------------------------------------------------------------------------330166 chip 1.5 0.55 5.7 0.67----------------------------------------------------------------------------330167 grab 0.85 15.2 1.16----------------------------------------------------------------------------330168 grab 1.61 24.2 2.09----------------------------------------------------------------------------330169 chip 1.0 1.11 10.8 1.33----------------------------------------------------------------------------330170 chip 1.0 1.11 8.0 1.27----------------------------------------------------------------------------330177 chip 1.0 11.90 15.5 12.21----------------------------------------------------------------------------330182 chip 1.5 0.32 2.8 0.37----------------------------------------------------------------------------330183 chip 1.0 0.44 2.9 0.50----------------------------------------------------------------------------330185 chip 1.8 0.58 6.5 0.71----------------------------------------------------------------------------330186 chip 1.7 3.50 44.1 4.38----------------------------------------------------------------------------330187 chip 1.0 5.10 42.3 5.95----------------------------------------------------------------------------330188 chip 1.0 0.86 3.8 0.94----------------------------------------------------------------------------330189 chip 1.0 1.75 42.1 2.59----------------------------------------------------------------------------330190 chip 1.0 0.54 15.6 0.85----------------------------------------------------------------------------330191 chip 1.0 0.41 4.5 0.50----------------------------------------------------------------------------330192 chip 1.0 1.40 29.6 1.99----------------------------------------------------------------------------330193 chip 1.5 0.41 3.5 0.48----------------------------------------------------------------------------330194 chip 1.0 0.85 4.7 0.94----------------------------------------------------------------------------330195 chip 1.0 1.02 7.6 1.17----------------------------------------------------------------------------330196 chip 1.0 1.40 7.3 1.54----------------------------------------------------------------------------330197 chip 1.5 3.84 8.6 4.01----------------------------------------------------------------------------330198 chip 1.2 1.01 9.0 1.19----------------------------------------------------------------------------330199 chip 1.0 2.16 17.1 2.50----------------------------------------------------------------------------330201 chip 1.0 2.17 11.2 2.39----------------------------------------------------------------------------330202 1.0 0.60 2.6 0.65----------------------------------------------------------------------------330203 chip 0.6 1.21 68.5 2.58----------------------------------------------------------------------------330205 chip 1.4 0.32 1.1 0.35----------------------------------------------------------------------------330206 chip 2.0 0.47 1.0 0.49----------------------------------------------------------------------------330208 chip 1.0 0.48 3.5 0.55----------------------------------------------------------------------------330209 chip 2.0 0.49 1.1 0.51----------------------------------------------------------------------------330221 grab 0.39 14.4 0.67----------------------------------------------------------------------------330222 chip 1.0 0.88 39.3 1.67----------------------------------------------------------------------------330223 chip 1.5 0.31 17.2 0.65----------------------------------------------------------------------------330224 chip 1.5 1.10 21.5 1.53----------------------------------------------------------------------------330226 chip 1.5 2.12 36.5 2.85----------------------------------------------------------------------------TEN-10 grab 3.0 x 4.0 0.52 5.0 0.62----------------------------------------------------------------------------TEN-12 chip 1.5 2.83 36.8 3.57----------------------------------------------------------------------------TEN-3 chip 0.8 0.45 1.9 0.48----------------------------------------------------------------------------TEN-5 grab 0.46 5.9 0.58----------------------------------------------------------------------------TEN-9 chip 1.5 0.32 3.8 0.40----------------------------------------------------------------------------



Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.



Contacts:
Mammoth Resources Corp.
Thomas Atkins
President & CEO
(416) 479-0887
(416) 363-4567 (FAX)
tom@mammothresources.ca
www.mammothresources.ca



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