For over 30 years, Todd has been participating in archaeological research projects seeking to refine our understanding of human-landscape interactions, primarily on the North American Great Plains. A native of Meeteetse, Wyoming, Todd received his BA from the University of Wyoming and MA and PhD in Anthropology from the University of New Mexico in 1983. Beginning with his first field experiences, which led to his doctoral dissertation research on an early Holocene bison kill site, he spent most of the last quarter of the 20th century researching the archaeology and taphonomy of bison kill sites. For the last few years, his field work has been split between investigating archaeology of early humans in Ethiopia during the winter and human impacts on high elevation, wilderness environments in Wyoming’s Greater Yellowstone Ecosystem during the summer. In 2008, he returned to the Big Horn Basin, and is anticipating nearly full time research into the prehistory of Northwestern Wyoming.