Grand Geyser (Upper Geyser Basin)

Grand Geyser is the tallest predictable geyser in the world and was without a doubt one of the highlights of our trip to Yellowstone. It erupts up to 200 feet high for 9-12 minutes. Before each eruption, the pools fill with water and people usually start to gather on the benches facing the geyser. You can also get the predictions for upcoming eruptions at the visitor center.

Grand Geyser is a classic fountain geyser that erupts with powerful bursts, usually between 1 and 4 during an eruption. When we were there, people started to leave after the first burst and came running back as the second burst followed.