The geysers and other thermal features of Yellowstone National Park make up a vast, complex and dynamic collection of constantly changing natural wonders. A wide range of amateur hobbyists and professional geologists and hydrologists regularly track the activities and changes in Yellowstone’s thermal features and post their findings at various sites online. Here's a look at October's thermal activity. October saw quite a few interesting changes, and based on reports, would have been a great time to head to Yellowstone to see things in person. The first snowfall of the season came to Yellowstone and closed some of the entrances in October. Continue Reading →