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NYS Department of Environmental Conservation | http://www.dec.ny.gov/

For additional datasets available from NYSDEC, see the list of DEC datasets at the NYSGIS Clearinghouse.

Large Scale Watersheds data series

51 mapsheets available for data theme Large Scale Hydrography Network (by watershed)

The NYS Large Scale Hydrography dataset is similar to the USGS National Hydrography Dataset (NHD) in that it is tiled by subbasin and is networked (has center lines and connectors to represent continuous linear flow). NHD also includes a flow table, reach codes, and many other features that the NYS Hydrography Network does not yet have.

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 MapsheetTheme NameProviderFormatMore InfoDownload
AusableLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
BlackLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
BronxLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
Buffalo-EighteenmileLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
CattaraugusLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
Chaumont-PerchLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
Chautauqua-ConneautLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
ChemungLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
ChenangoLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
ConewangoLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
East Branch DelawareLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
English-SalmonLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
FrenchLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
GrassLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
Great Chazy-SaranacLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
Hackensak-PassaicLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
HousatonicLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
Hudson-HoosicLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
Hudson-WappingerLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
IndianLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
Irondequoit-NinemileLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
Lake GeorgeLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
Lower GeneseeLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
Lower HudsonLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
Middle Delaware-Mongaup-BrodheadLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
Middle HudsonLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
MohawkLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
NiagaraLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
Northern Long IslandLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
Oak Orchard-TwelvemileLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
OneidaLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
OswegatchieLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
OswegoLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
Owego-WappeseningLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
RaquetteLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
RondoutLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
SacandagaLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
Salmon-SandyLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
Sandy Hook-Staten IslandLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
SaugatuckLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
SchoharieLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
SenecaLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
Southern Long IslandLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
St. RegisLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
TiogaLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
Upper AlleghenyLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
Upper DelawareLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
Upper GeneseeLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
Upper HudsonLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
Upper St. LawrenceLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
Upper SusquehannaLarge Scale Hydrography Network (by watershed)NYSDECARCEinfometadata download now
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