American Indian Rock Art, published continuously since 1975, is the country's premier series of volumes dedicated to research on rock art as presented at the annual conferences of the American Rock Art Research Association (ARARA). This volume contains 16 papers submitted for publication during the Covid-19 pandemic year of 2020, when the annual conference was cancelled. Topics cover documentation, interpretation, and technical analyses of numerous sites in the Plains and Greater Southwest regions and beyond with over 350 illustrations, most in color.