Bluffs along the Hayes River valley, 31 km northeast and 40 km downstream from Hayes Volcano, reveal volcanic deposits that shed new light on its eruptive history. Three thick (>10 cm) and five thin (<10 cm) tephra-fall deposits are dacitic
Wallace, Kristi kwallace@usgs.gov,Coombs, Michelle L. mcoombs@usgs.gov,Hayden, Leslie A. lhayden@usgs.gov,et al. Significance of a near-source tephra-stratigraphic sequence to the eruptive history of Hayes Volcano, south-central Alaska. 2014-01-01.