Late quaternary glacial deposits, soils, and chronology, hell roaring valley, Mount Adams, Cascade Range, Washington

The relative age of late Quaternary glacial deposits above 1600 m in Hell Roaring Valley on Mount Adams, Washington, is determined on the basis of several criteria including lichenometry, soil characteristics, and pyroclastic layers. A four-fold sequence (units I, II, III, and IV) can be identified, and tentatively correlated with the Garda and Burroughs Mountain stades of Neoglaciation, and the Fraser Glaciation, respectively, as described on Mount Rainier. The sequence is also believed to be broadly correlative with that described in the Wallowa Mountains, Oregon, the Wind River Mountains, Wyoming, and the Front Range, Colorado.