Tim Cowman is the state geologist at the South Dakota Geological Survey, which is part of the South Dakota Department of Agriculture and Natural Resources. As state geologist, he directs the operation of the State Geological Survey, which includes geology and groundwater resource assessments, aquifer delineation, and geologic mapping. Cowman’s work as a geologist and hydrologist includes surface water/groundwater interactions, Missouri River geomorphology, and a statewide flood information system. He has a master’s degree in natural sciences and geochemistry and a bachelor’s degree in Earth sciences and chemistry from the University of South Dakota.