On August 24, 2016, President Obama designated Katahdin Woods and Waters National Monument – our nation’s newest national monument and the 413th site in the national park system. Katahdin Woods and Waters National Monument will permanently protect north-central Maine’s awe-inspiring mountains, forests and waters for current and future generations. The approximately 87,500 acres that make up the new national monument is rich in biodiversity and known for its outstanding opportunities to hike, canoe, hunt, fish, snowmobile, snowshoe and cross-country ski. Photo by Scott Miller. Tweeted by the US Department of the Interior, 8/24/16.