Geological maps of areas in all five boroughs of New York City circa 1850 and circa 1935 to 1941
Description
The accession consists of geological maps showing depth of soil and rock strata and borings data from the five boroughs in their entirety; several maps show individual sites. Most of the maps were created through Work Projects Administration (WPA; formerly the Works Progress Administration) projects, and/or the Borough Presidents' Topographical Bureaus and the Board of Water Supply. There are thirteen single maps and six map sets (6, 6, 3, 3, 3 and 2 maps respectively). The maps were created on many different media such as blueprint, linen, and transparencies, and were made using ink, pencil, and printing press. A few are hand colored in pencil and most are in good condition. One map is a reproduction (probably mid-19th century) of the 1767 Ratzer Map of New York City (which has topographic features); it is mounted on cardboard and is in fair-to-poor condition. The maps were in active use in the Department of Design and Construction until they were transferred to the Municipal Archives.
Extent
0.75 cubic feet (36 sheets)
Dates
circa 1850, 1935-1941
Record Groups
Names
Source
- New York (N.Y.). Department of Design and Construction (Organization)
Creator
- New York (N.Y.). Board of Water Supply (Organization)
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