food chain / Rubber boas / stream systems / river systems / rubber boa / aquatic systems / food / /
NaturalFeature
Stevenson Island / Mt. St. Helens / Yellowstone / Yellowstone plateau / Yellowstone Lake / Tower Falls / Bridge Bay / Geyser Hill / Montana / Firehole River / Gardner River / Hayden Valley / Lamar Valley / Yellowstone River / Wyoming / /
Organization
National Park Service / United States Congress / Lewis and Clark / Yellowstone National Park Yellowstone Center / /
Person
Michael V / Renée Evanoff / David Folsom / John Colter / Jennifer Whipple / Sue Consolo Murphy / /
Position
Prime Minister / MP / V. Finley Superintendent / head / member / /