“…These cool, wet periods are marked by high pluvial lake levels (e.g., Currey et al, 1990;Matsubara and Howard, 2009;McGee et al, 2012;Oviatt, 2015), mountain glacier advances prior to the onset of the Bølling-Allerød (e.g., Owen et al, 2003;Guido et al, 2007;Orme, 2008;Refsnider et al, 2008Refsnider et al, , 2009Brugger, 2010), increased landsliding in the Rio Grande basin between ∼ 21.2 and ∼ 14.5 ka (Reneau and Dethier, 1996), deposition of valley fills in the Colorado River (Pederson et al, 2013), and speleothem growth (e.g., Polyak et al, 2004;Oster and Kelley, 2016). The warmer Bølling-Allerød and Holocene correspond to records of mountain glacier retreat (Guido et al, 2007;Laabs et al, 2013;Munroe and Laabs, 2013) and strath terrace formation due to river incision (Anders et al, 2005;Cook et al, 2009). While anomalous records, such as speleothem growth ∼ 14 ka during the Bølling-Allerød (Polyak et al, 2004), complicate the picture of past climate in the southwest, the general pattern of climate change closely mirrors that observed in the Greenland ice core records (Benson et al, 1997;Svensson et al, 2008;Asmerom et al, 2010;Wagner et al, 2010).…”