“…The timing and magnitude of Pleistocene glacier advances in the broader Altai have been the subject of prior investigations (Lehmkuhl et al., 2004, 2007, 2011, 2016; Blomdin et al., 2016; Dong et al., 2020; Gribenski et al., 2016, 2018; Klinge et al., 2021; Yang et al., 2017). A number of chronologies indicate that full‐glacial configurations of Central Asian mountain glaciers were achieved not only at the time of the global LGM during Marine Isotope Stage (MIS) 2 (∼29–14 ka; Lisiecki & Raymo, 2005), but also preceding the global LGM during MIS 3 (∼57–29 ka; Lisiecki & Raymo, 2005) (Batbaatar et al., 2018; Blomdin et al., 2018; Dong et al., 2020; Gillespie et al., 2008; Gribenski et al., 2016, 2018; Klinge et al., 2021; Krivonogov et al., 2012; Lehmkuhl et al., 2011; Prokopenko et al., 2009; Rother et al., 2014). Debate remains as to whether glacial advances during the local Last Glaciation were synchronous throughout Central Asia (e.g., Batbaatar et al., 2018); these issues may reflect the scarcity of well‐resolved glacial chronologies or lack of landform preservation.…”