Water, water, everywhere -- What are springs? -- Inside the earth -- What's that smell? -- It's alive! -- Gushing geysers -- Hunting for hot springs and geysers -- Old faithful and other geysers -- Springs of energy -- Protecting geysers and hot springs -- Precious natural resources.
This resource is supported by the Institute of Museum and Library Services under the provisions of the Library Services and Technology Act as administered by State Library of Iowa.