Yellowstone National Park's Old Faithful can be relied on to erupt every 10 minutes or so. Steamboat Geyser cannot. It went dormant for years, then woke back up. There's a new video showing a massive eruption of Steamboat for the first time in months.
It's a bit unsettling when you are driving across a bridge only to find that it's bouncing. That's exactly what happened to some visitors in Yellowstone National Park this week as that "bouncing" was because of a very large and enthusiastic herd of bison.