Rainy River Resources

NI 43-101 Resources of 3.42M oz. Au Indicated and 3.17M oz. Au Inferred (Feb. 2011)

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Message: Groundhog Day Results Release
February 2, 2012
Rainy River Resources Intersects 1.7 g/t Gold & 7.9 g/t Silver Over 37.5 Metres in Cap Zone, and Establishes Continuity of Cap at Depth, With 4.0 g/t Gold & 15.1 g/t Silver Over 12.0 Metres
TORONTO, ONTARIO--(Marketwire - Feb. 2, 2012) - Rainy River Resources Ltd. ("Rainy River" or the "Company") (TSX:RR) is pleased to announce assay results from the Rainy River Gold Project ("RRGP") in northwest Ontario. Results are summarized in Table 1.

HIGHLIGHTS

--  Drilling intersects significant grade and width within the open pit in
    the CAP Zone, including 37.5 metres of 1.7 g/t gold and 7.9 g/t silver
    in NR11860 
--  CAP Zone drilling shows excellent continuity at depth, with NR11937
    intersecting 19.5 metres of 3.2 g/t gold and 11.8 g/t silver at 480
    metres depth 
--  Strong results continue at the ODM Zone in-pit infill program, with
    NR111013 intersecting 25.5 metres of 4.7 g/t gold and 2.0 g/t silver,
    and NR11844 intersecting 1.9 g/t gold and 1.9 g/t silver over 87.0
    metres 
--  NR11971 intersected 19.5 metres of 4.2 g/t gold and 2.6 g/t silver in
    the ODM Zone below the pit bottom
To view the maps associated with this release, please visit the following links:

Map 1: http://media3.marketwire.com/docs/RR%20Map%201.pdf

Map 2: http://media3.marketwire.com/docs/RR%20Map%202.pdf

Map 3: http://media3.marketwire.com/docs/RR%20Map%203.pdf

Map 4: http://media3.marketwire.com/docs/RR%20Map%204.pdf

Map 5: http://media3.marketwire.com/docs/RR%20Map%205.pdf

Map 6: http://media3.marketwire.com/docs/RR%20Map%206.pdf

CAP ZONE

Drilling in 2011 on the CAP Zone was designed to bring a substantial amount of inferred mineralization around the southern pit wall into higher confidence categories, while expanding the CAP Zone within the pit and at depth. A total of nineteen new holes were drilled, successfully encountering mineralization within the open pit, and at depth, with widths amenable to underground mining.

CAP ZONE IN-PIT

NR11860 intersected 1.7 g/t gold and 7.9 g/t silver over 37.5 metres, at a vertical depth of 216 metres. Ten metres to the west, and at a vertical depth of 219 metres, NR11850 intersected 1.7 g/t gold and 6.4 g/t silver over 28.3 metres. Other in-pit results include NR11877, which graded 0.7 g/t gold and 2.6 g/t silver over 24.0 metres, at a vertical depth of 275 metres, and NR11926, which intersected 1.2 g/t gold and 5.6 g/t silver over 25.5 metres, at a vertical depth of 75 metres. The historical average grade for the CAP Zone is 0.68-0.70 g/t gold.

CAP ZONE BELOW-PIT

Deeper drilling below the pit has been highly successful in expanding the CAP Zone at depth, with NR11937 grading 3.2 g/t gold and 11.8 g/t silver over 19.5 metres, at a vertical depth of 480 metres, including 4.0 g/t gold and 15.1 g/t silver over 12 metres, at a vertical depth of 477 metres. This is one of the thickest and highest grade CAP Zone intersections encountered to date. The new intersection is open at depth, and creates a new and potentially significant underground target.

Additional holes drilled to intersect deep CAP Zone mineralization included NR11971, which intersected 2.8 g/t gold and 32.0 g/t silver over 3.0 metres, at a vertical depth of 310 metres, and NR11974, which intersected 2.1 g/t gold and 9.3 g/t silver over 4.5 metres, at a vertical depth of 410 metres, with a deeper CAP intersection of 4.8 g/t gold and 23.6 g/t silver over 3.0 metres, at a vertical depth of 519 metres.

ODM - IN PIT

The Company continued drilling within the pit to convert inferred resources to measured and/or indicated resources. Several holes intersected had grades above the resource grade of the pit, including NR111013, which intersected 25.5 metres at 4.7 g/t gold and 2.0 g/t silver, including 19.9 g/t gold and 3.3 g/t silver over 4.5 metres, at a vertical depth of 366 metres. Notably, NR111013 continues to demonstrate higher grades towards the pit bottom. Additional highlights within the pit included NR11844, which intersected 87.0 metres of 1.9 g/t gold and 1.9 g/t silver at a vertical depth of 107 metres, and NR11916, which intersected 1.4 g/t gold and 2.1 g/t silver over 24.0 metres, at a vertical depth of 413 metres.

ODM - BELOW PIT

Drilling below the planned open pit has continued to show better continuity of deep ODM Zone mineralization. NR11971 intersected 19.5 metres grading 4.2 g/t gold and 2.6 g/t silver at a vertical depth of 641 metres. Additional highlights include 7.5 metres grading 4.0 g/t gold and 8.1 g/t silver, at a vertical depth of 617 metres in NR11917, and higher grade intersections in NR11860 of 67.1 g/t gold and 11.3 g/t silver over 1.1 metres at a vertical depth of 546 metres, as well as 35.0 g/t gold and 4.8 g/t silver over 1.5 metres, at a vertical depth of 682 metres in NR11813.

17 Zone

Drilling within the 17 Zone has also continued to return good results with typical higher grades of silver. NR11918 intersected 1.5 g/t gold and 3.7 g/t silver over 30.0 metres, at a vertical depth of 341 metres, and NR11909 returned 1.5 g/t gold and 17.4 g/t silver over 11.7 metres. East of the pit boundary, NR111004 returned 1.9 g/t gold and 24.6 g/t silver over 7.5 metres.

17 Zone Eastern Extension

One additional hole has been completed in the target area for underground development: NR11859 intersected 6.1 g/t gold and 7.4 g/t silver over 3.0 metres, at a vertical depth of 670 metres.

COMMENTARY

Raymond Threlkeld, President and CEO of Rainy River Resources commented: "The continued strong intersections in the ODM in-pit and now the CAP in-pit appear to support the addition of resource ounces and conversion of material into higher confidence levels for the next resource update, scheduled for the end of this quarter. Further, the new CAP zone intersections at depth are exciting as they add to the underground potential of the Rainy River Gold Project."

Qualified persons

Rainy River's exploration program in Richardson Township is being supervised by Kerry Sparkes, P.Geo., Vice-President Exploration, a Qualified Person as defined by National Instrument 43-101. Mr. Sparkes, P.Geo., is also the person responsible for the content of this news release. The Company has a rigorous QA/QC program in place to ensure best practices in sampling and analysis of drill core. All drill core is marked for sampling and then split in half with a diamond saw blade. Samples are placed in sealed bags with security tags. All samples were assayed using a standard fire assay, 30 gram nominal sample weight with an AA finish. Over-limit samples were re-assayed with a gravimetric finish. Samples with visible gold were automatically analyzed for Ore Grade by 1000g screen fire assay, with coarse and fine fractions being combined proportionately and the fine fraction being assayed twice. Standards, blanks and duplicates are inserted every 25 metres. ALS Canada Ltd. performed primary assaying, with duplicates being analyzed at Activation Laboratories Ltd. ALS Canada Ltd. and Activation Laboratories Ltd. implements independent QA/QC protocols that include the insertion of certified blanks and standards as part of their routine analysis.

About Rainy River

Rainy River Resources Ltd. is a Canadian precious metals exploration company whose key asset is the Rainy River Gold Project, a large gold system centred in Richardson Township (part of Chapple Township). As of September 30, 2011, the Company had $115 million in cash and securities, and is well funded for its 2012 plans to 1) commence a feasibility level study on the RRGP; 2) continue growing the existing resource through exploration; 3) conduct a condemnation program in areas identified for potential mine facilities; and 4) continue regional exploration. RRGP is very well located in the southwestern corner of northern Ontario, near the U.S. border. It is accessed by a network of roads and is close to hydro-electric infrastructure. The Rainy River district has a skilled labour force and is one of the lowest-cost areas for mineral exploration and development in Canada. The Company is working to advance the early-stage discoveries at its TPK Joint Venture Property, also in Ontario, where it can earn a 51% interest in the property from Northern Superior Resources Inc. Ontario has low political risk and, according to the annual Fraser Institute global survey of the mining industry, has consistently ranked as one of the top jurisdictions embracing mineral development.

RAINY RIVER RESOURCES LTD.

Raymond W. Threlkeld, President & CEO

This release includes certain statements that may be deemed to be "forward-looking statements". All statements in this release, other than statements of historical facts, that address events or developments that management of the Company expects, are forward-looking statements. Although management believes the expectations expressed in such forward-looking statements are based on reasonable assumptions, such statements are not guarantees of future performance, and actual results or developments may differ materially from those in the forward-looking statements. The Company undertakes no obligation to update these forward-looking statements if management's beliefs, estimates or opinions, or other factors, should change. Factors that could cause actual results to differ materially from those in forward-looking statements, include market prices, exploration and development successes, continued availability of capital and financing, and general economic, market or business conditions. Please see the public filings of the Company at www.sedar.com for further information.

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                   VERTICAL                           AU     AG             
HOLE-ID   SECTION     DEPTH   FROM     TO  LENGTH  (G/T)  (G/T)         ZONE
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NR11778    425399        52   49.5   56.6     7.1    0.9    7.2          CAP
NR11778    425400        86   88.5   90.5     2.0    0.5    2.3          CAP
NR11778    425401       120  124.5  128.0     3.5    1.0    4.7          CAP
NR11778    425402       127  132.5  134.5     2.0    2.9   11.7          CAP
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NR11789   No significant assay                                              
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NR11812    425323       662  693.0  697.5     4.5    3.1    2.4     ODM DEEP
NR11812    425329       703  738.0  745.5     7.5    3.8   14.4     ODM DEEP
NR11812    425331       715  754.5  756.0     1.5   10.3    4.8     ODM DEEP
NR11812    425332       724  763.5  766.4     2.9    3.7    2.6     ODM DEEP
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NR11813    425449       531  565.5  568.5     3.0    4.8    1.3       ODM HW
NR11813    425478       682  744.0  745.5     1.5   35.0    4.8     ODM DEEP
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NR11834   No significant assay                                              
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NR11844    425581       107   87.0  174.0    87.0    1.9    1.9          ODM
Including  425580        77   91.5   93.0     1.5   50.3   15.4          ODM
And        425580        84   93.0  109.5    16.5    2.0    3.0          ODM
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NR11845   No significant assay                                              
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NR11846   No significant assay                                              
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NR11849    425606        69   59.6  109.0    49.4    1.0    1.5          ODM
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NR11850    425380       219  207.5  235.8    28.3    1.7    6.4          CAP
Including  425380       211  207.5  219.5    12.0    3.2   11.3          CAP
NR11850    425383       261  255.5  275.0    19.5    0.5    1.7          CAP
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NR11855    425627        57   62.0   75.0    13.0    0.6    1.0          ODM
NR11855    425628       102  118.5  132.0    13.5    0.5    1.0          ODM
NR11855    425629       125  145.5  163.5    18.0    1.0    1.1          ODM
NR11855    425630       157  189.0  202.5    13.5    0.5    4.7          ODM
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NR11857   No significant assay                                              
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NR11859    426166       670  871.5  879.0     7.5    3.5    5.3 17 EAST DEEP
Including  426166       670  873.0  876.0     3.0    6.1    7.4 17 EAST DEEP
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NR11860    425389       216  200.5  238.0    37.5    1.7    7.9          CAP
Including  425389       216  218.8  224.0     5.2    5.0   21.9          CAP
NR11860    425447       546  578.0  579.1     1.1   67.1   11.3     ODM DEEP
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NR11861    426304       285  340.0  355.0    15.0    0.4    8.8      17 EAST
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NR11866    425498        46   50.0   51.5     1.5   22.8  415.0       ODM FW
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NR11871    426313       212  274.5  292.5    18.0    0.4   17.1      17 EAST
NR11871    426314       237  315.0  319.5     4.5    0.6   32.3      17 EAST
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NR11873    425678        59   66.0   76.5    10.5    1.9    3.1          ODM
NR11873    425674       122  132.0  165.0    33.0    1.1    1.2          ODM
NR11873    425671       157  189.0  198.0     9.0    1.8   15.3          ODM
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NR11877    425146       275  286.5  310.5    24.0    0.7    2.6          CAP
NR11877    425212       579  666.0  667.5     1.5    4.7   55.4          ODM
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NR11879   No significant assay                                              
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NR11884   No significant assay                                              
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NR11897    425098       539  586.5  589.5     3.0    3.4    1.7          ODM
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NR11904    425771        49   52.5   69.0    16.5    1.0    2.2          ODM
NR11904    425770        69   84.0   87.0     3.0    9.7   14.6          ODM
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NR11909    425958        54   66.0   69.0     3.0    5.1   21.4           17
NR11909    425958        86   99.0  109.5    10.5    0.6    2.5           17
NR11909    425958       103  117.0  129.0    12.0    0.8    3.2           17
NR11909    425958       153  178.5  184.5     6.0    1.8    1.7           17
NR11909    425957       217  250.8  262.5    11.7    1.5   17.4           17
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NR11916    425267       413  445.5  469.5    24.0    1.4    2.1          ODM
Including  425267       417  459.0  465.0     6.0    2.5    1.3          ODM
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NR11917    425235       617  669.0  676.5     7.5    4.0    8.1          ODM
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NR11918    425945       341  385.0  415.0    30.0    1.5    3.7           17
Including  425945       340  392.5  404.5    12.0    2.0    4.0           17
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NR11921    425778       136  175.5  178.5     3.0    2.0    3.0          ODM
NR11921    425776       176  219.0  240.0    21.0    1.5    1.2          ODM
NR11921    425774       226  297.0  301.5     4.5    2.2    0.7          ODM
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NR11926    425481        75   66.0   91.5    25.5    1.2    5.6          CAP
Including  425481        65   66.0   69.0     3.0    5.2   25.9          CAP
NR11926    425492       328  345.1  357.0    11.9    0.8    0.9          ODM
NR11926    425499       407  432.0  444.0    12.0    1.3    1.1          ODM
NR11926    425502       435  462.0  477.0    15.0    1.4    1.0          ODM
NR11926    425506       474  505.5  520.3    14.8    0.9    1.6          ODM
NR11926    425507       490  529.5  531.0     1.5   18.3    4.4          ODM
NR11926    425508       498  538.5  540.0     1.5  162.0   29.3          ODM
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NR11929    425834       293  362.5  376.5    14.0    1.0    2.0           17
NR11929    425837       313  394.8  399.0     4.2    1.7    1.4           17
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NR11933    426200        66   88.5   96.0     7.5    0.8   19.8          ODM
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NR11937    425003       171  171.0  174.0     3.0    1.9    1.2        SOUTH
NR11937    425042       480  504.0  523.5    19.5    3.2   11.8     CAP DEEP
Including  425041       477  504.0  516.0    12.0    4.0   15.1     CAP DEEP
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NR11941   No significant assay                                              
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NR11942    425659       276  330.0  357.0    27.0    0.7    2.6          ODM
NR11942    425663       330  409.5  415.5     6.0    1.1    3.3          ODM
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NR11943    425584       178  219.0  235.5    16.5    0.6    1.0          ODM
NR11943    425587       193  243.0  252.0     9.0    1.2    1.6          ODM
NR11943    425597       251  325.5  328.5     3.0    6.9    6.0          ODM
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NR11949   No significant assay                                              
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NR11958   No significant assay                                              
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NR11962    426063       267  342.5  350.0     7.5    1.3    8.1           17
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NR11964    426266        75  111.0  112.5     1.5    4.5   81.6      17 EAST
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NR11967   No significant assay                                              
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NR11968   No significant assay                                              
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NR11970    425316       590  654.0  660.0     6.0    2.8    1.4          ODM
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NR11971    425238       310  333.0  336.0     3.0    2.8   32.0          CAP
NR11971    425273       641  721.5  741.0    19.5    4.2    2.6          ODM
Including  425274       648  739.5  741.0     1.5   16.7    6.8          ODM
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NR11974    425250       410  457.5  462.0     4.5    2.1    9.3          CAP
NR11974    425271       519  592.5  595.5     3.0    4.8   23.6       CAP FW
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NR11976   No significant assay                                              
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NR11978    426255       200  282.0  291.0     9.0    0.6   15.3      17 EAST
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NR11981   No significant assay                                              
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NR11985   No significant assay                                              
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NR11991   No significant assay                                              
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NR11992    426148       185  259.5  276.0    16.5    1.1   19.5           17
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NR11993   No significant assay                                              
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NR11999    425313       333  370.5  378.0     7.5    1.2    6.8          CAP
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NR111002  No significant assay                                              
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NR111004   426202       185  250.5  258.0     7.5    1.9   24.6      17 EAST
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NR111013   425207        63   65.4   75.0     9.6    0.8    1.9          CAP
NR111013   425233       340  406.5  408.0     1.5   32.1    1.0          ODM
NR111013   425237       374  439.5  465.0    25.5    4.7    2.0          ODM
Including  425236       366  439.5  444.0     4.5   19.9    3.3          ODM
                                                                            
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