“…The Kahiltna assemblage in southern Alaska (Fig. 1) and associated basins along strike to the east and southeast (Nutzotin, Dezadeash, and Gravina basins) are part of a coeval group of thick, mostly deep-water, deformed mid-Cretaceous (115-80 Ma) basins (some with strata as old as Late Jurassic) in Alaska and northwestern Canada that includes the Kuskokwim basin (Cady et al, 1955;Box and Elder, 1992;Miller and Bundtzen, 1994;Kalbas, 2006), Yukon-Koyukuk basin (Patton and Box, 1989;Nilsen, 1989;O'Brien et al, 2017), Manley basin (Silberling et al, 1992;Weber et al, 1992), Kandik basin (Brabb and Churkin, 1969;Johnsson, 2000), Colville basin (Bird and Molenaar, 1992;Houseknecht et al, 2009), and the Eagle-Mackenzie basin (Miall, 1973;Schröder-Adams, 2014). Following Ingersoll (2012), we use the term "basin" to refer to an accumulation of sedimentary or volcanic rocks, with no inference as to its genesis or origin.…”