Alaska. Ash beds included in varved silts and clays in a 125-foot bluff on the east side of Richardson Highway at mile 75. The ash points up the high contortion of beds within the undisturbed horizontal varves. 1954. Figure 162.1, U.S. Geological Survey Professional Paper 400-B.
Digital File:ndr00205

ID. Nichols, D.R. 205