Medoro Resources Ltd. (TSX VENTURE:MRS) is pleased to announce drill results from a further 20 drill holes from its exploration and in-fill drilling program at the Marmato Project in Colombia. These results continue to provide further confidence in Medoro's geological resource model. These drill holes are part of the ongoing approximately 100,000 metre drilling program, which is aimed at expanding and upgrading the current measured and indicated gold resource estimate of 7.5 million ounces, with an additional 2.2 million ounce inferred resource estimate.1

Highlighted intersections include the following holes:

Note: gold grades cut to 20.0 g/t

All of the above holes were planned as either in-fill holes or step-out holes and were drilled from surface in the Zona Alta and Echandia areas of the Marmato Project.

John Hick, President and CEO of Medoro, commented: "We are very pleased with the consistently good results from this drilling program, which demonstrate good gold grades over significant widths. The results continue to confirm our interpretation of the deposit. Marmato is a significant bulk tonnage gold project in Colombia which is distinguished by its access to excellent infrastructure, an existing operational mine and mill and topography which will allow for the construction of bulk tonnage mine."

"Furthermore, the underground gold mine in Zona Baja gives us the advantage of being able to drill previously inaccessible areas and to drill deeper areas of the deposit, which is open to depth, more efficiently. The underground part of the program has now started with one rig, and another three rigs will be added in September. The gold zone is open to the southeast and the northwest and to depth, and we look forward to further expanding the resources in these areas as the drilling program progresses," he added.

This drilling program commenced in January 2010 and is scheduled to finish in mid-2011. The drilling program will include both surface and underground drilling. There are now 10 drill rigs in operation on surface, plus one more underground. Another three underground drill rigs are already in Colombia and should be at site before the end of September, which will bring the total number of rigs to 14.

The Marmato Project is one gold deposit comprised of the three contiguous license areas of Zona Alta, Echandia and Zona Baja, which cover 1,198 hectares in Caldas, Colombia. The Marmato Project currently has a measured and indicated mineral resource of approximately 7.5 million ounces of gold in a total of approximately 245 million tonnes of material with an average grade of 0.95 g/t Au, and an additional inferred resource of approximately 2.2 million ounces of gold in a total of approximately 76 million tonnes of material with an average grade of 0.92 g/t Au, plus additional silver resources, all as set out in the NI 43-101 technical report1 in respect of the Marmato Project resource estimate, which was filed on SEDAR on April 22, 2010 (the "Technical Report"; see the Company's press release dated April 22, 2010).

The table below sets out the full drilling results for the 20 drill holes referred to in this press release representing a total of 7,080 m of drilling. A total of 82 drill holes have been completed and reported on to date for a total of 27,946 m of drilling. All of the results to date, together with a map showing the locations of the drill holes, are available on the Company's website at www.medororesources.com.

The total number of metres drilled to date is 37,235 m in 108 holes, including twin holes, 16 holes for which the Company is awaiting assay results and 10 drill holes which are currently in progress.

The drill holes were inclined at 45 to 75 degrees from horizontal and the intersection lengths do not represent the true widths. Sample lengths are normally 2.0 metres but may be varied for geological and recovery factors. Intersections were calculated using a cut-off grade of 0.1 g/t gold and no more than 6.0 metres of internal dilution. Gold grades were cut to 20.0 g/t, and uncut grades are also reported for comparison where applicable. Silver grades are uncut. Assay results are reported in the table above a minimum average grade of 0.3 g/t gold. Voids from old mine workings were identified and assigned a zero grade.

About Medoro Resources Ltd.

Medoro Resources Ltd. is a gold exploration, development and mining company with a primary emphasis on Colombia. The Company operates the producing Mineros Nacionales gold mine located in Zona Baja at Marmato and is conducting an exploration and in-fill drilling program at its Marmato Project to upgrade and expand its gold resources there.

Medoro has a 5% interest in the Frontino Gold Mines assets through a joint venture with Gran Colombia Gold Corp., which operates the joint venture and holds the other 95%. The 5% interest is a carried interest for one year, during which time Medoro has a back-in right option to increase its interest to 50% by paying 50% of the net purchase price, Finders Fees and any capital expenditures incurred by the joint venture up until the exercise of such option, plus a premium of 25% thereon. If Medoro does not exercise its back-in right, its 5% interest would be a participating interest subject to dilution if Medoro does not contribute it ongoing share of expenditures. The Frontino Gold Mines assets cover a large land position of 2,907 hectares in the northeast of the Department of Antioquia, Colombia.

Medoro also holds a 100% interest in the Lo Increible 4A and 4B concessions in Venezuela where it is continuing its efforts to obtain an exploitation permit to allow development of these gold properties when circumstances in Venezuela allow. Medoro owns interests in gold exploration properties in Mali in respect of which it is seeking possible joint venture partners to further explore these properties.