© State of New Jersey 1976. Includes inset map of "Trenton in 1897", two cross sections, text, location map, and color illustrations. "Based on the 1866 geologic map which shows the towns, streets, roads, canals and drainage of that time". Based on the 1866 geologic map which shows the towns, streets, roads, canals and drainage of that time. Ancillary map:Trenton in 1897. New Jersey. Department of Environmetal Protection. Bureau of Geology and Topography.