Title from title screen (viewed September 15, 2014).
Also available online in PDF format from the U.S. Geological Survey Warehouse (http://pubs.er.usgs.gov/).
"Correlation of volcanic markers in fossiliferous lake and stream deposits along 50 miles of the Snake River has established the stratigraphy of a thick sequence of late Pliocene age."
Bibliography
Includes bibliographical references (pages 18-19).