“…The LIA is less well defined than the MCA, but Mann et al (2009) state that the coldest period occurred between 1400 and 1700 CE, or approximately 600-300 a. Evidence of the MCA megadroughts and LIA droughts is preserved in tree rings (Cook et al, 2007;Cook et al, 2010;Cook et al, 2004), lake sediments (Fritz et al, 2000;Hobbs et al, 2011;Laird et al, 1996;Schmieder et al, 2013;Schmieder et al, 2011), and incised stream channels (Burkhart et al, 2008) throughout the region. White River Badlands aeolian and loess deposits (shaded), adapted from United States Geological Survey 1:5,000,000 scale surficial deposit map (Soller and Reheis, 2004).…”