The world's tallest active geyser in Yellowstone National Park erupted for a third time this year on Friday, a rarity for the spring that hadn't occurred since 2003. The Steamboat geyser, which shoots ...

Steamboat is the world's tallest active geyser, but unlike Old Faithful, its eruptions are completely unpredictable. Now, a new analysis suggests that at least one recent Steamboat eruption got ...

RENO, Nev. (News 4 & Fox 11) — Not since the days of Mark Twain has there been anything like what people witnessed in the Steamboat area of south Reno this month — a geyser shooting scalding water 30 ...

A June 17 Facebook post (direct link, archive link) shows lava and a large cloud of smoke erupting from a ridge. "Breaking: Yellowstone Lava Geyser," reads the post's caption. "For the first time in ...