[Named for Dushkin Lagoon in southwest part of Port Moller 1:250,000 quad, southwest AK.] [no type designated] Occurs on north margin of Dushkin Lagoon and south of tip of long southwestern arm of glacier extending from Little Pavlof [volcano] and cropping out sporadically over distance of 20 mi southwestward to Mt. Dutton. Consists of flows composed of dark, unaltered rocks, locally rich in inclusions of dense earlier basalt. [Unconformably] overlies Arch Point basalt (new) and locally the Belkofski tuff (new). [Unconformably] underlies (locally) Mt. Hague volcanics, Mt. Emmons volcanics, Glacier Ridge andesite, Glacier Ridge agglomerate (all new), and unnamed volcanic rocks and alluvium. Age is Quaternary based on regional relations.

Source: GNU records (USGS DDS-6; Menlo GNULEX).