http://www.hcn.org These are the search results for the query, showing results 1 to 1. http://www.hcn.org/wotr/pondering-change-in-the-great-basin Paleontology and geology at Summer Lake, an ancient lake bed in Oregon, have shown the Great Basin's history of dramatic change No publisher Pepper Trail Altithermal Summer Lake climate change Pleistocene Great Basin Lake Chewaucan Hot Times 2012-10-16T23:29:08Z News Article