Great Plains lowland / Rocky Mountains / Great Valley / Sierra Nevada Mountains / Plains lowland / Central Lowlands / Rocky Mountain Region / Gulf of California / Columbia Plateau / Ouachita-Ozark Highlands / Green River / Great lowland / Colorado Plateau / Central lowland / /
Organization
Y. Yang Center for Imaging / University of Colorado / G. D. Bensen / M. H. Ritzwoller and Y. Yang Center for Imaging / Department of Physics / /
Person
Williston Basin / M. H. Ritzwoller / Y. Yang Figure / /