“…Although the timing of the Lake Bonneville highstand is well established, the age of the underlying till is limited only by its weathering characteristics (Scott et al, 1983) and by correlations to nearby settings where age limits are available (Madsen and Currey, 1979). Additionally, some recent reports include observations of till overlying shoreline gravels of Lake Bonneville at the western front of the Wasatch Mountains (Personius and Scott, 1992;Godsey et al, 2005b), thereby indicating multiple ice advances to the mouth of Little Cottonwood Canyon. However, as noted above, whether the till underlying shoreline gravels was deposited during MIS 2 or an earlier interval of the late Pleistocene cannot be discerned from the available data.…”