Introduction Lidar has had a revolutionary effect on archaeology. After a decade of use in Belize, it has transformed our understanding of ancient Maya settlement and has profoundly affected archaeological interpretations of the past. In Mesoamerica, the technology is now recognized as an important tool for identifying and interpreting past settlements. Yet, the introduction of lidar to the research repertoire has also raised a host of ethical issues that must be resolved. The introduction of broad-scale lidar to Maya archaeology over a decade ago has resulted in a paradigm shift in the field (Chase et al. 2012), leading researchers to examine models of ancient complexity reflected in more broadly sampled landscapes (e.g., Canuto et al. 2018; Chase 2017; Chase and Chase 2016a). Lidar constituted a major advance in Mesoamerican settlement studies by demonstrating the extent of ancient occupation, land use, and terraforming, as well as offering clues to settlement boundaries (e.g., D. Chase and A. Chase 2017; Chase et al. 2014a, 2014b). Lidar has permitted a much broader view of sites, landscapes, and land use by revealing new public architecture, extensive settlement, roads, and the remnants of large agricultural systems (e.g., A. Chase et al 2010, 2011; D. Chase et al. 2011; Canuto et al. 2018; Reese-Taylor et al. 2016; Ringle et al. 2017). New analyses and techniques are also permitting more sophisticated research questions to be addressed through the use of lidar, such as those regarding the control of water flow, the design of ancient space, and the identification of inequality (e.g., Chase 2016b, 2017; Chase and Weishampel 2016). And, while lidar ground-truthing has been called for by some researchers (e.g., Ford and Horn 2018), others are realizing that, rather than on-the-ground checks, what is needed is more extensive archaeological excavation to determine the dating and function of identified features (e.g., A. Chase and D. Chase 2017; Inomata et al. 2018, 2020). The ability to undertake large-scale spatial analysis with lidar has increased archaeological foci from site cores to entire regional systems (e.g., Chase et al. 2012, 2014b). As researchers have the tools to examine new questions relative to the use of ancient landscapes (e.g., Chase and Chase 2016b), older paradigms that saw the Maya as simple chiefdoms practicing slash-and-burn agriculture (e.g., Webster 1998) are being put to rest. While lidar has served as a catalyst for reframing research questions in Mesoamerican archaeology, in the Maya area, it has also raised a host of ethical questions that are not fully resolved. Some of these ethical questions may be exclusive to Mesoamerican archaeology, but others are framed by the wider use of broad scale lidar throughout other parts of the world (e.g., Evans et al. 2013; Stott et