A 1: 100,000-Scale Map of Surficial Deposits in Glacier Bay National Park and Preserve, Southeast Alaska by Richard a Becker (Paperback / softback, 2013)
The geologic story of the park consists of two distinct chapters: one recorded in the bedrock, which ranges from 400 to 7 million years in age, and a second much younger story written in the surficial sediments whose ages with few exceptions range from ca. 20,000 years ago to the present.