Where the Sea Used to Be

Science Moab

Over 65 million years ago, a seaway existed across North America from the present-day Gulf of Mexico to present-day Alaska. Peter Flaig, Research Scientist at the Bureau of Economic Geology in Austin, TX, has studied the geology of this seaway by looking at deposits from the southwest US into Canada and Alaska. We talk with Peter about the margin of this seaway that includes parts of the present-day Colorado Plateau.