topic

• Water-supply11
• Railroads8
• Watersheds6
• Reservoirs5
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name

• Chas. Hart & Sons4
• New York (State). Board of Health4
• New York (N.Y.). Aqueduct Commission3
• Rand McNally and Company3
• Craven, Alfred Wingate, 1810-18792
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collection

• Maps of New York City and State20
• Maps of North America3

place

• New York (State)19
• New York14
• Croton Aqueduct (N.Y.)11
• Westchester County10
• Croton River Watershed (N.Y.)7
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genre

• Maps23
• Road maps3
• Thematic maps1

publisher

• State Board of Health4
• Rand McNally & Co3
• Aqueduct Commission2
• Croton Aqueduct Board2
• G.W. & C.B. Colton & Co2
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division

type

• cartographic23