Tulsa's Gilcrease Museum is currently showing one of the finest collections of early color printmaking, or chromolithography, in its exhibit called "Yellowstone and the West: The Chromolithographs of Thomas Moran," which is on display through September 8th at the museum. The exhibit features a suite of 15 prints commissioned and made by Louis Prang; these are prints of Moran's watercolors from his 1871 journey to Yellowstone as a member of the Hayden Expedition. This act of exploration --- and the imagery of it, created by Moran --- led directly to Congress setting Yellowstone aside as our nation's first national park. Our guest on this edition of StudioTulsa is art historian Joni Kinsey. A former Tulsan, Kinsey is a professor of American art history at the University of Iowa and a noted Moran scholar. She's also the author of the catalogue, "Thomas Moran's Art: Chromolithography, High Art, and Popular Taste."