Endeavour Silver Reports Initial NI 43-101 Mineral Resource Estimate and Preliminary Economic Assessment for El Compas Mine, Zacatecas, Mexico http://www.marketwired.com/press-release/endeavour-silver-reports-initial-ni-43-101-mineral-resource-estimate-preliminary-economic-nyse-exk-2205365.htm VANCOUVER, BC--(Marketwired - March 27, 2017)