NPCA Large Scale Surface Water Inventory Hydrographic Features

GIS layers reflecting large scale (1:2k, 1:10k) surface water features of the Niagara Watershed such as waterbodies (lakes, ponds, reservoirs, large rivers, marshland), rivers, streams, creeks, ditches, hydronet basins and catchments, watersheds and subwatersheds. These data help identify and map surface water interactions with water and wastewater systems and other municipal infrastructure (storm water systems, culverts, bridges).

NPCA Large scale water features

Request Data [.shp, .pdf]

Extent [Niagara Watershed]


NPCA Large Scale Hydrographic Features [computer file]. (2011). Niagara Peninsula Conservation Authority. Available: Brock University Map, Data & GIS Library Controlled Access \DATA\Niagara\NPCA_WRIP_largescale\ (Accessed Current Date).


The data is licensed to Brock University faculty, staff and students for teaching and research purposes only and requires the user to sign a Generic license agreement.

Related Information

Documentation file [PDF]
Local \DATA\Niagara\NPCA\LargeScaleSurfaceHydrographicFeatures\UpdatingExistingIntegratedLargeScaleHydrologyData_FINAL.pdf

NPCA Watershed Explorer: (web mapping interface) Click More…>Base Layers>

NPCA Open Data Portal 

Stream Flow Monitoring (historical & near real time) – water level, stream flow, precipitation, air temperature and water temperature. Reports, charts, custom reports and data download.

Local Access

Local DATA\Niagara\NPCA\LargeScaleSurfaceHydrographicFeatures\


Contact us in-person at the Map, Data & GIS Library (Mackenzie Chown C306), via telephone at 905-688-5550 x5890, or via email at