1. Map and description of late Tertiary and Quaternary deposits, Valdez quadrangle, Alaska [cartographic material] Yale Public content 1980. 2002-06-01T04:00:00Z. 2022-12-09T04:08:27Z. Geological Survey (U.S.). The Survey. English. cartographic image. Public. Alaska and Alaska. Tertiary, Quaternary, and From 2 to 65 million years ago.