| 11. | This created the source of heat and water that feed the West Thumb Geyser Basin today.
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| 12. | "' Crested Pool "'is a hot spring in the Upper Geyser Basin in Yellowstone National Park.
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| 13. | "' Ojo Caliente Spring "'is a hot spring in Lower Geyser Basin, of Yellowstone National Park.
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| 14. | The boat dock was located near the south end of the geyser basin near Lakeside Spring.
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| 15. | The Norris Geyser Basin is the hottest and most rapidly changing of Yellowstone's several geyser areas.
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| 16. | "' Midway Geyser Basin "'is much smaller than the other basins found alongside the Firehole River.
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| 17. | It is located in the Midway Geyser Basin.
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| 18. | "' Castle Geyser "'is a cone geyser in the Upper Geyser Basin of Yellowstone National Park.
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| 19. | The hills surrounding Old Faithful and the Upper Geyser Basin are reminders of Quaternary rhyolitic lava flows.
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| 20. | "' Pump Geyser "'is a cone geyser located in the Upper Geyser Basin of Yellowstone National Park.
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