Rainy River Resources Ltd.
TSX VENTURE : RR

Rainy River Resources Ltd.

April 22, 2008 08:00 ET

Rainy River Reports Further Drill Results From Richardson Township: 433 Zone Extended to 350 m Along Strike and 300 m Depth

NR08-228 intersects 21.13 g/t Au over 4.8 m NR08-229 intersects 4.43 g/t Au over 24.0 m NR08-237 intersects 2.37 g/t Au over 33.0 m

VANCOUVER, BRITISH COLUMBIA--(Marketwire - April 22, 2008) - Nelson W. Baker, President and CEO of Rainy River Resources Ltd. (TSX VENTURE:RR), is pleased to report the results of 5 drill holes, all in the 433 Zone and from the 2008 drilling program in Richardson Township approximately 55 km northwest of Fort Frances, Ontario. This release provides the final results for NR08-227, 228, 229, 231 and 237. The first four holes are all positioned along the third step-out fence (the holes and the step-out fences are spaced 60 m apart) and were designed to intersect the 433 Zone at about the 300 m level. The fifth hole, NR08-237, is on the first step-out fence and represents the most easterly intersection to date. The details of all intervals for the 5 holes are highlighted in Table 1 below and the hole locations are included in a revised longitudinal section for the 433 Zone to be posted on the Company's website www.rainyriverresources.com.

Highlights:

- NR08-227 intersects 48.0 m grading 1.15 g/t Au including 7.0 m grading 3.16 g/t Au

- NR08-228 intersects two parallel gold zones of 4.8 m grading 21.12 g/t Au and 19.5 m grading 1.01 g/t Au

- NR08-229 intersects two parallel gold zones of 15.8 m grading 1.20 g/t Au and 24.0 m grading 4.43 g/t Au

- NR08-231 intersects two parallel gold zones of 46.0 m grading 1.04 g/t Au and 16.0 m grading 1.11 g/t Au

- NR08-237 intersects (near surface) 33.0 m grading 2.37 g/t Au including 7.5 m grading 4.99 g/t Au and 6.0 m grading 3.94 g/t Au

Since acquiring a 100% interest in the Rainy River Project in 2005, the Company has completed 247 holes totalling 120,362 metres. The 2008 drilling program, totalling 46,000 metres (increased from 42,000 metres), is expected to be completed in Q3 and is designed, in part, to define additional mineralization proximal to the Company's initial NI43-101 resource consisting of 1.4 million ounces of indicated and 2.2 million ounces of inferred gold mineralization (see news release dated February 28, 2008). Definition drilling of the 433 Zone and the Cap Zone, a new semi-massive Au-Ag-Zn-Cu discovery 400 metres stratigraphically above the 17/ODM zone (see press release November 5, 2007), is expected to increase the current open pit resource base significantly. With the completion of the planned 2008 drill program, the Company plans to release a revised NI43-101 gold resource by the end of Q3 or early in Q4.

The gold-dominant, polymetallic, subcropping (average 23 metres of overburden cover) 433, HS, 17/ODM and Cap Zones lie along four parallel, stacked, mineralized horizons that occur within a 6 km2 bedrock gold anomaly. Since acquiring the Rainy River project, the Company has focused primarily on defining a NI43-101 gold resource in the 17/ODM zone and has drill-tested only 7% of its total land package of 61,000 acres. Several other high-priority, drill-ready gold targets are present within the 6 km2 gold anomaly.

Regional Exploration Program

A 3,000 metre drill program is scheduled to begin during the first week in May in the Off Lake area located 23 km northeast of Richardson Township within the Rainy River greenstone belt. This program is designed to test several new mineralized Au-Ag-Zn-Cu surface showings that were identified by Company prospectors in late 2007. A fifth drill rig will be mobilized to complete this drill program.

The rigid Quality Assurance and Quality Control (QA/QC) procedures followed by the Rainy River technical team are described in detail on its website at http://www.rainyriverresources.com/s/QualityControl.asp. Nelson W. Baker, P.Eng., is the Qualified Person for the Rainy River Project and the person responsible for the contents of this news release.

About Rainy River Resources Ltd.

Rainy River is a Canadian precious metals exploration company whose key asset is the Rainy River gold project. With a $37 million treasury, the Company is well funded to conduct an aggressive year-round resource definition drilling program and regional drill testing of priority targets specifically designed to enhance the resource of 1.4 million ounces of indicated and 2.2 million ounces of inferred gold mineralization. The property is extremely well located in western Ontario near the U.S border. It is accessed by a network of roads, and is close to hydro-electric infrastructure. 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 that embraces mineral development.

Nelson W. Baker, President



Table I
SUMMARY OF MAIN INTERSECTIONS

433 ZONE (down plunge)

-----------------------------------------------------------------------
From To Interval Gold
Hole (m) (m) (m) (g/t) Target
-----------------------------------------------------------------------
NR08-227 358.0 406.0 48.0 1.15 60 m south of NR08-222
Incl. 358.0 362.7 9.2 1.13
Incl. 391.0 396.5 7.0 3.16
-----------------------------------------------------------------------
NR08-228 65.5 67.0 1.5 1.51 60 m west of NR08-227
100.0 115.3 15.3 0.71
261.5 266.3 4.8 21.13
287.5 304.5 17.0 0.84
370.0 412.0 19.5 1.01
-----------------------------------------------------------------------
NR08-229 55.0 81.1 26.1 0.68 60 m west of NR08-228
322.0 337.8 15.8 1.20
406.0 430.0 24.0 4.43
449.5 464.5 15.0 1.06
-----------------------------------------------------------------------
NR08-231 68.5 114.5 46.0 1.04 120 m west of NR08-229
231.5 248.0 16.0 1.11
-----------------------------------------------------------------------
NR08-237 65.0 98.0 33.0 2.37
Incl. 65.0 72.5 7.5 4.99
Incl. 83.0 89.0 6.0 3.94
111.5 117.5 6.0 1.19
-----------------------------------------------------------------------

Note: The interval widths quoted for the 433 Zone above are considered
to be close to true width and all gold grade intervals are uncut.


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.

The TSX Venture Exchange has not reviewed and does not accept the responsibility for the adequacy or accuracy of this news release.

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