Three small overlapping late-Quaternary Icelandic-type basaltic to basaltic-andesite shield volcanoes are located NE of Leutongey volcano, west of the crest of the central Sredinny Range. Tuzovsky, the SW-most volcano, is the highest; Tvitunup is the northernmost, and Sredny is NE of Tuzovsky. Early geologic studies in the Sredinny Range (Ogorodov et al., 1972) identified numerous Holocene eruptive centers based primarily on morphological criteria. However, later work has suggested that Sredinny Range volcanoes are less mantled by Holocene tephras than eastern Kamchatka volcanoes and therefore appear more youthful, so that Holocene eruptions are uncertain for many of these Sredinny Range eruptive vents.