Bedrock valley morphology and tributary basin organization records signatures of lithology and transience across the Upper Mississippi River Valley

Jedidiah Dale, Washington University in St Louis, St. Louis, MO, United States, Claire C Masteller, Washington University in St. Louis, Earth and Planetary Sciences, St. Louis, United States, José Antonio Constantine, Williams College, Geosciences, Williamstown, MA, United States and Henry Chandler, Washington University in Saint Louis, Earth and Planetary Sciences, Saint Louis, United States