Published by the American Geophysical Union as part of the Field Trip Guidebooks Series, Volume 361. This field trip enables delegates attending the Twenty-eighth International Geological Congress to spend several days in the largest city in the United States. Local geologists have designed day-long field trips to acquaint participants with the complex geology of the New York city metropolitan region. The papers included in this book will serve as guides to the planned trips but may not necessarily follow the order in which the trips will be scheduled.

The nine papers in this volume cover the geology beneath Washington, D.C., Boston, Chicago, Edmonton, Kansas City, New Orleans, New York City, Toronto, and St. Paul/Minneapolis, and present methods of data gathering that could be used in most cities.

Reprint of a work originally published in 1973. Contents: Intro.; Historic Review of New York City¿s Water Supply Systems; Geologic Work of the Board of Water Supply; Geological Mapping in the Region; General Geology and Topography; Available Sources of Additional Water Supply; The Croton System; The Catskill System: General Description, and Aqueduct Location; Esopus, Rondout and Schoharie Watersheds; Tongore Site; Gilboa Dam; Catskill Aqueduct -- Olive Bridge Dam to Peekskill; Catskill Aqueduct -- Yorktown to Yonkers; Kensico Reservoir; Hill View Reservoir: City Tunnel No. 1: The Silver Lake Reservoir; The Delaware System; City Tunnel No. 3; Future Work of the Board of Water Supply; Bibliography. Tables and Figures.