Uinta Basin Photomicrograph. Photo by Michael Vanden Berg.

Photomicrograph of limestone from the Eocene-age Green River Formation showing small ostracod shells surrounding and filling larger
gastropod fossils.

Nine Mile Canyon Road, Carbon County, Utah. Photo by Emily Kleber.

Cliffs of deltaic sandstone in the Eocene-age Green River Formation tower over Nine Mile Canyon, an area rich in geologic and human history.