Description: From Fierstein (2007): "Peaty soil 30 cm thick plus two ash layers (discussed below) separate the mafic orange fine ash from another compositionally similar tephra (Fig. 13 [in original text]) here called the "mafic crystal ash". This older layer is a medium brown crystal-rich ash, 4-5 cm thick in Angle Creek (sample K-2500D), where it is distinct on the cliff face due to sharp upper and lower contacts and relatively coarser grain size (fine to medium crystal sand). The ash is a dark green-orange color, 2-2.5 cm thick, and fine (though still a bit gritty) in Bush Creek (19 km NE, Section K-2675). Because the unit thins and fines eastward, its source is west of the Katmai cluster. From the relatively mafic glass composition (58-62% SiO2), the eruption is inferred not to have been of 1912-magnitude and likely originated from a not-too distant vent. Peulik seems a likely candidate. Peat directly beneath this tephra in Moraine Creek yields a radiocarbon age of 8,500+/-120 14C years. B.P. and in Windy Creek 8,600+/-120 14C years. B.P."