Old Faithful Geyser: In the 1870s, explorers in Yellowstone National Park witnessed a geyser that erupted like clockwork and gave it a name that still defines Yellowstone today
A Crowd of People Watching Old Faithful Geyser Erupt in Yellowstone National Park on an Overcast Day (iStock) Some places become famous because of what people build there. Yellowstone became famous because of what nature built beneath its surface.In the summer of 1870, a group of explorers stood in what is now Yellowstone National Park…