Ashfall Fossil Beds State Historical Park & National Natural Landmark : present view of an ancient past : a cooperative project of the University of Nebraska State Museum and Nebraska Game and Parks Commission / by Mike Voorhies, Rick Otto, Sandy Mosel, Shane Tucker ; illustrations by Mark Marcuson, Angie Fox, Joel Nielsen, Adrienne Stroup.
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.