Endeavour Silver Outlines Several Prospective New Silver-Gold Veins on the Terronera Property in Jalisco State, Mexico

VANCOUVER, BC–(Marketwired – June 27, 2016) – Endeavour Silver Corp. (TSX: EDR) (NYSE: EXK) announces that its surface exploration program has outlined several prospective new silver-gold veins on the Terronera property in Jalisco State, Mexico. To date, mapping has extended the Terronera vein system over a 7 kilometre (km) by 7 km area and identified nine additional veins in the northern half of the property (view map).

Sampling of the Terronera vein system confirmed that high-grade, low sulphidation epithermal silver-gold mineralization is present in many of the veins. Assays of several thousand samples, including grab samples, selected samples and chip samples, returned values up to 2,880 grams per tonne (gpt) silver and up to 26.7 gpt gold.

Assay highlights from five of the new veins are summarized in the table below. These assays are intended to show peak values confirming the presence of high-grade mineralization and should not be taken as representative of the entire veins. Most of these new veins have never been tested by drilling. Silver equivalents are calculated at a ratio of 70:1 silver:gold.

                 
Vein   Sample No   Au   Ag   AgEq
  (gpt)   (gpt)   (gpt)
Las Coloradas   17540   6.41   2,880   3,329
  17542   0.59   850   891
  17543   1.52   1,005   1,111
  17555   0.13   294   303
  17579   0.25   282   300
Los Reyes   15808   0.10   585   592
  15813   1.93   393   528
  15814   0.99   562   631
  15875   1.42   630   729
  17259   4.03   1,050   1,332
  17264   0.73   743   794
  17302   1.94   575   711
La Ermita   15261   0.13   398   407
  15358   0.88   506   568
  15359   0.48   387   421
  15361   0.55   290   329
  15367   0.37   423   449
  15369   0.43   1,355   1,385
  15470   0.13   342   351
El Padre   14223   0.87   135   196
  14061   10.10   148   855
  14208   0.58   174   215
  14226   0.52   227   263
  14229   1.97   315   453
  14207   0.73   325   376
  14221   0.66   358   404
La Luz   12840   20.70   506   1,955
  12832   5.31   555   927
  14019   0.52   564   600
  12836   6.82   567   1,044
  12862   7.81   576   1,123
  12837   5.70   589   988
  12838   26.70   763   2,632
  12833   11.15   763   1,544
  12808   8.09   818   1,384
  12907   7.40   951   1,469
                 

General descriptions of five of the new veins are shown in the table below:

                 
Target   Length (m)   Width (m)   General Description   Results (ranges)
  Au ppm   Ag ppm
Las Coloradas   700   0.85-2.30   Quartz vein (gray, saccaroidal to massive); with disseminated sulphides; dendriticOxMn, OxFe in fractures; associated argillized rhyolitic volcanics, with oxidized disseminated pyrite   0.005-6.41   4.0-2880
Los Reyes   1,800   0.25-2.55   Quartz vein (white-crystalline); with traces of OxMn + OxFe; hosted in silicified rhyolitic volcanics   0.006-4.03   0.2-1050
La Ermita   600   0.15 – 3.00   Quartz vein (white-massive), with moderate to strong OxFe + OxMn + hematite, in druses and boxworks; traces of pyrite and other sulphides; with stockwork zones at the hanging wall and footwall.   0.005-0.88   0.4-1355
El Padre   1,800   0.40 – 4.00   Quartz vein (white-massive); with moderate to strong oxidation, at some parts intense OxMn. Quartz stockwork observed at the hanging wall. with disseminated pyrite and traces of gray sulphides, intervals with very white quartz and weak oxidation.   < 0.005-10.10   < 0.2-358
La Luz   1,550   0.30 – 3.00   Quartz Vein (white-massive), with moderate to strong oxidation; some hydrothermal breccias with stockwork zones, with moderate oxidation, and some massive quartz, with weak oxidation; OxFe + OxMn;   < 0.005-26.7   0.5-951
                     

Luis Castro, Vice President of Exploration, commented, “These excellent sample results confirm that Endeavour owns an entire vein district on the Terronera property, with many veins exhibiting high-grade silver-gold mineralization and small historic mine workings but no past exploration drilling. Currently we have two drill rigs testing the El Padre and La Luz veins.”

Godfrey Walton, M.Sc., P.Geo., Endeavour’s President and COO, is the Qualified Person who reviewed and approved this news release and supervised the drilling programs in Mexico. 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 local 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.

About Endeavour – Endeavour Silver Corp. is a mid-tier precious metals mining company that operates three high-grade, underground, silver-gold mines in Mexico. Since start-up in 2004, the Company has organically grown its mining operations to produce 11.4 million ounces of silver equivalents in 2015. Endeavour’s growing discovery of high-grade silver-gold mineralization on the Terronera property in Jalisco state, combined with the recent acquisition of the permitted El Compas mine and plant in Zacatecas state, should facilitate the Company’s goal to become a premier senior producer in the silver mining sector.

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For more information, please contact:
Meghan Brown
Director Investor Relations
Toll free: 1-877-685-9775
Tel: 604-640-4804
Fax: 604-685-9744
Email: [email protected]
Website: www.edrsilver.com