10.1130/2011320 I. Lucchitta I. Lucchitta Supplemental material: A Miocene river in northern Arizona and its implications for the Colorado River and Grand Canyon Geological Society of America 2011 Geoscience 2011-01-01 00:00:00 Journal contribution https://gsapubs.figshare.com/articles/journal_contribution/Supplemental_material_A_Miocene_river_in_northern_Arizona_and_its_implications_for_the_Colorado_River_and_Grand_Canyon/12527702 GSA Data Repository Item 2011320, GSA Today. File size: about 1025 KB.