Marli B. Miller is a senior instructor and researcher at the University of Oregon. She completed her BA in geology at Colorado College in 1982 and her MS and PhD in structural geology at the University of Washington in 1987 and 1992, respectively, where coauthor Darrel Cowan was her thesis advisor. Marli teaches a variety of courses, including introductory geology, structural geology, field geology, and geophotography. In addition to numerous technical papers, she is the author of Roadside Geology of Oregon and coauthor of Geology of Death Valley National Park. She is the photographer for What's So Great About Granite, written by Jennifer Carey, the editor of this Roadside Geology book! Marli has two daughters, Lindsay and Megan.