“…There is a substantial body of human-environment research embedded within the often-taken-forgranted bounds of the West, historically thought of as lands west of the 100th meridian (Wilkinson 1993, Seager et al 2018 for a few research examples, see Brick et al 2001, Robbins et al 2009, Altaweel et al 2015. Various prior research efforts that have attempted to define the West as a distinct region have focused on factors such as water appropriation law, lack of demographic diversity, rurality, or presence of iconic animal species (Nugent 1992, Berry et al 2000, Robbins et al 2009, McKinney and Thorson 2015. Despite these efforts, there has been relatively little effort to analytically demarcate and define the West as a region with consistent social and ecological characteristics, organized by a common set of system variables, and marked by diverse sets of nested dynamics.…”