Colombia says Angostura project's environmental impact unacceptableMar 18, 2011 | News Conflict between locals and AIM-listed Greystar Resources forced the suspention of a public hearing about the Angostura project. See http://www.minesandcommunities.org/article.php?a=10776.Related posts Authorities visit Angostura gold project - Colombia India's Ministry Says No Green Nod For Vedanta's Bauxite Mine Project Locals fight Xstrata's 'monster' Tampakan project