March 18, 2008 Rainy River's 433 Gold Zone Demonstrates Strong Continuity Along Strike and at Depth VANCOUVER, BRITISH COLUMBIA--(Marketwire - March 18, 2008) - Nelson W. Baker, President and CEO of Rainy River Resources Ltd. (TSX VENTURE:RR) is pleased to report that the 433 Zone, located on a stacked, south-southwest dipping gold horizon approximately 400 m stratigraphically below the 17/ODM trend, continues to yield excellent gold intersections over wide intervals both along strike and down plunge. This release provides the final results for holes NR08-221, 222 and 224, all positioned along a third step-out fence (each fence spaced 60 m apart) that was designed to test the 433 Zone approximately 300 m vertically below surface. The details of all intervals for the above holes are highlighted in Table I below and the hole locations are included in a revised longitudinal section to be posted soon on the Company's website www.rainyriverresources.com. The horizontal strike distance between NR08-221 (east) and NR08-224 (west) is 120 meters. The 433 Zone has now been traced down dip for over 300 m and remains open in all directions. Highlights: - NR08-221 intersects 13.0 m grading 5.12 g/t Au including 7.5 m grading 7.91 g/t Au - NR08-221 intersects 29.2 m grading 2.01 g/t Au including 5.5 m grading 8.16 g/t Au - NR08-224 intersects 19.5 m grading 1.14 g/t Au including 7.5 m grading 1.51 g/t Au In a previous release, the Company announced that it plans to drill 42,000 metres during 2008. The program started on January 23, 2008 with four drill rigs. As of March 01, 2008, 20 holes totaling 12,147 metres have been completed. The drilling program is designed to convert a large portion of the inferred resource in the 17/ODM Zone to the indicated category and to expand the total mineral resource beyond the current 1.4 million ounces of indicated and 2.2 million ounces of inferred gold mineralization (see news release dated February 28, 2008). The 17/ODM, 433 and CAP zones contain an indicated mineral resource of 34,238,000 million tonnes grading 1.26 g/t (1.4 million ounces of gold) and an inferred mineral resource of 67,564,000 tonnes grading 1.03 g/t (2.2 million ounces of gold). The gold zones are covered by an average of 22.5 m of glacial overburden. Rainy River's technical team adheres to rigid Quality Assurance and Quality Control (QA/QC) procedures which are described in detail on the Company's website at http://www.rainyriverresources.com/s/QualityControl.asp. The Rainy River exploration program is being managed on-site by project manager, Mr. Wally Rayner, P.Geo., with input from Senior Technical Advisors, Mr. Stuart A. Averill, P.Geo. and Nelson W. Baker, P.Eng., all of whom are Qualified Persons within the guidelines of National Instrument 43-101. 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 3.6 million ounce gold resource. The project 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 1 433 ZONE - SUMMARY OF MAIN INTERSECTIONS NR08-221, 222, 224 NR08-221 dip -61 depth 497 metres (60 m south of NR08-217 and 60 m east of NR08-222) 1 gold zone intersected ---------------------------------------- Length g/t From To (m) Au ---------------------------------------- Zone 1 357.5 369.5 13.0 5.12 ---------------------------------------- Incl. 360.0 367.5 7.5 7.91 ---------------------------------------- NR08-222 dip -61 depth 470 metres (60 metres west of NR08-221) 2 gold zones intersected ---------------------------------------- Length g/t From To (m) Au ---------------------------------------- Zone 1 320.8 350.0 29.2 2.01 ---------------------------------------- Incl. 342.5 348.0 5.5 8.16 ---------------------------------------- Zone 2 416.0 419.0 3.0 1.01 ---------------------------------------- NR08-224 dip -61 depth 521 metres (120 m west of NR08-222) 3 gold zones intersected ---------------------------------------- Length g/t From To (m) Au ---------------------------------------- Zone 1 165.5 168.5 3.0 1.54 ---------------------------------------- Zone 2 380.0 384.5 4.5 0.84 ---------------------------------------- Zone 3. 404.0 423.5 19.5 1.14 ---------------------------------------- Incl. 404.0 411.5 7.5 1.51 ---------------------------------------- All drill holes quoted in the above table were drilled at an azimuth of 359 degrees and all intersected widths are considered to be true widths. 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.

CONTACT INFORMATION: Rainy River Resources Ltd. Brad Baker (604) 731-6900 ext. 248 Fax: (604) 731-6999 Email: bwb@rainyriverresources.com Website: www.rainyriverresources.com INDUSTRY: Manufacturing and Production - Mining and Metals