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Press release from Marketwire

Endeavour Silver Drilling Continues to Extend High Grade Gold-Silver Mineralization in Lucero and Karina Veins at Guanajuato Mine, Mexico

Endeavour Silver Added to S&P/TSX Index Effective December 20, 2010

Tuesday, December 14, 2010

Endeavour Silver Drilling Continues to Extend High Grade Gold-Silver Mineralization in Lucero and Karina Veins at Guanajuato Mine, Mexico09:01 EST Tuesday, December 14, 2010VANCOUVER, BRITISH COLUMBIA--(Marketwire - Dec. 14, 2010) - Endeavour Silver Corp. (TSX:EDR)(NYSE Amex:EXK)(DBFrankfurt:EJD) announces that exploration drilling south of the Bolanitos mine, part of Endeavour's Guanajuato Mines project in Guanajuato State, Mexico, continues to extend high grade gold-silver mineralization within the Lucero, Karina and related veins.Recent drilling highlights include 249 grams per tonne (gpt) silver and 4.90 gpt gold over a 2.33 meter (m) true width (14.4 oz per ton (opT) silver equivalents, assuming 100% recoveries, over 7.6 feet) in hole LC35 within the Lucero vein; 953 gpt silver and 110 gpt gold over a 0.23 m true width (188 opT silver equivalents, assuming 100% recoveries, over 0.8 ft) in hole KA-17 within a Karina footwall vein; and 156 gpt silver and 7.73 gpt gold over a 3.29 m true width (15.8 opT silver equivalents, assuming 100% recoveries, over 10.8 ft) in hole KA-18 within the Karina vein (silver equivalents based on 50:1 silver:gold ratio).A plan map and longitudinal sections for these drill holes can be found on the Endeavour website: http://www.edrsilver.com/s/maps.aspRECENT LUCERO, KARINA, FERNANDA AND DANIELA DRILL RESULTSHoleVeinFromCore LengthTrue WidthAgAu(m)(m)(m)(g/t)(g/t)LC-35Lucero Vein218.903.302.332494.90Including220.650.550.3965912.05KA-15Karina Vein72.001.401.322181.93Fernanda Vein83.900.650.271773.87Vein100.351.201.131335.28Vein146.800.300.174822.60Vein151.350.950.6134949.60Daniela Vein154.709.108.501797.14Including154.702.402.1017819.53Vein168.701.701.4925312.13Vein172.900.750.572335.05KA-17Vein146.150.300.23953110.00Vein199.350.250.1826711.30KA-18Karina Vein90.504.303.291567.73Including94.150.650.5017721.00KA-19Karina Vein163.902.551.645334.33Vein209.752.151.551570.25KA-20Karina Vein113.058.104.65982.52KA-21Karina Vein140.009.755.591213.82Including148.350.650.3734014.95Bradford Cooke, Chairman and CEO of Endeavour, commented: "Exploration drilling at Guanajuato continues to extend our recent high grade gold-silver discoveries within the Lucero, Karina, Fernanda and Daniela veins, as well as some of the many narrower but higher grade veins found in the footwall rocks to these main veins. Three drill rigs continue to work at delineating the extents of our new finds, and we still have multiple drill targets yet to test. As a result of our recent exploration successes, management is considering a major mine and plant expansion for Guanajuato in 2011."Barry Devlin, M.Sc., P.Geo., Vice President Exploration, is the Qualified Person who reviewed this news release and supervised the drilling program at Guanajuato. A Quality Control sampling program of reference standards, blanks and duplicates has been instituted to monitor the integrity of all assay results. All samples are split at the Guanajuato field office and shipped to ALS-Chemex Labs, where they are dried, crushed, split and 50 gram pulp samples are prepared for analysis. Gold and silver are determined by fire assay with an atomic absorption (AA) finish and lead, zinc and copper are determined by AA.Endeavour Silver Corp. is a small-cap silver mining company focused on the growth of its silver production, reserves and resources in Mexico. Since start-up in 2004, Endeavour has posted five consecutive years of growing silver production and resources. The organic expansion programs now underway at Endeavour's two operating silver mines in Mexico combined with its strategic acquisition and exploration programs should help Endeavour achieve its goal to become the next premier mid-tier silver mining company.ENDEAVOUR SILVER CORP.BRADFORD COOKE, Chairman and Chief Executive OfficerCautionary Note Regarding Forward-Looking StatementsThis news release contains "forward-looking statements" within the meaning of the United States private securities litigation reform act of 1995 and "forward-looking information" within the meaning of applicable Canadian securities legislation. Such forward-looking statements and information herein include, but are not limited to, statements regarding Endeavour's anticipated performance in 2010 and 2011, silver and gold production, and timing and expenditures to develop new silver mines and mineralized zones. The Company does not intend to, and does not assume any obligation to update such forward-looking statements or information, other than as required by applicable law. Forward-looking statements or information involve known and unknown risks, uncertainties and other factors that may cause the actual results, level of activity, performance or achievements of Endeavour and its operations to be materially different from those expressed or implied by such statements. Although the Company has attempted to identify important factors that could cause actual results to differ materially from those contained in forward-looking statements or information, there may be other factors that cause results to be materially different from those anticipated, described, estimated, assessed or intended. There can be no assurance that any forward-looking statements or information will prove to be accurate as actual results and future events could differ materially from those anticipated in such statements or information. Accordingly, readers should not place undue reliance on forward-looking statements or information.FOR FURTHER INFORMATION PLEASE CONTACT: Hugh ClarkEndeavour Silver Corp.(604) 685-9775 or Toll Free: 1-877-685-9775(604) 685-9744 (FAX)hugh@edrsilver.comwww.edrsilver.com