Cornerstone announces Bramaderos property trench assays of 22m at 4.8g/t gold http://www.globenewswire.com/news-release/2017/09/25/1132057/0/en/Cornerstone-announces-Bramaderos-property-trench-assays-of-22m-at-4-8g-t-gold.html September 25, 2017 08:00 ET