In the opening Naturalist Nights presentation of 2019, Sara Porterfield, Ph.D., will explore the stories of engineers, bureaucrats, policymakers, and whitewater boaters who traveled to and from the Colorado River Basin to rivers around the world. Through these stories, she will show how the international history of the Colorado River Basin can help us better understand the past while also providing valuable lessons and insights for current policymaking and water management decisions. Sara Porterfield, Ph.D., is a historian, river guide, educator, author, and founder of Tributaries Consulting whose work focuses on the Colorado River Basin and water in the American West.