close window

Questions for Discussion: A Visit to Yellowstone

Where is Yellowstone National Park? Why are there so many hot springs and other geothermal features there?
How does a geyser like Old Faithful keep to such a steady schedule?
What causes the many colors in the Grand Prismatic Hot Springs?
Three million people visit Yellowstone each year. What do you think is the impact of all these visitors? What are the benefits of having so many visitors? What might be some reasons to limit the number of visitors?