1. Mapping what's underground: "This is really kind of a last frontier if you will, in Yellowstone, of being able to look at a large part that’s underground that people have not looked at.... There’s just a lot we don’t know, and this survey is really exciting because it’s going to be the first view of a large portion of the groundwater system, of the water underground that feeds all of these thermal features."
2. Getting closer to taking grizzly bears of the Endangered Species List: "At that time, there were approximately 136 bears in Yellowstone. Today, officials estimate that there are more than 700 bears.... [Yellowstone superintendent Dan] Wenk says, if the grizzly populations shrink, it could threaten Yellowstone tourism. While hunters cannot pursue grizzlies on national park land, hunting could be allowed just outside of the parks, and therefore impact the grizzlies that live in or near Yellowstone and other national parks such as the Grand Teton National Park."
3. A 23-year-old man who fell into a hot spring not only died — his body dissolved overnight: "An Oregon man who died after falling into a scalding Yellowstone National Park hot spring in June was looking for a place to 'hot pot,' the forbidden practice of soaking in one of the park's thermal features, officials said. Sable Scott told investigators that she and her 23-year-old brother, Colin, left a boardwalk near Pork Chop Geyser.... As Sable Scott took video of her brother with her cellphone on June 7, he reached down to check the water temperature and slipped and fell into a thermal pool about 6 feet long, 4 feet wide and 10 feet deep.... Search and rescue rangers spotted Colin Scott's body floating in the pool the day of the accident, but a lightning storm prevented recovery, the report said. The next day, workers could not find any remains in the boiling, acidic water. 'In very short order, there was a significant amount of dissolving,' said [Deputy Chief Ranger Lorant Veress]."