At the southernmost tip of South America, the towering Andes rise sharply from the deep waters of the Pacific, creating Patagonia’s rugged expanse of coastal islands, dense rainforests and snow-capped glaciers. Thanks to years of advocacy by NRDC and our local partners, the Chilean government rejected plans by the hydroelectric company HidroAysén to build five mega-dams on two of Patagonia's pristine rivers that could lay waste to one of the world's last unspoiled regions and flood thousands of acres of wildlife habitat. But the company can still try to appeal the government's decision and push forward with the project in the future. In addition, other large dams are already being proposed in the region. NRDC is continuing our fight to block HidroAysén and all other mega-dam projects that threaten the spectacular wilderness of Patagonia.