An upper-tier municipality is made up of 2 or more lower-tier municipalities. Municipal responsibilities set out under the Municipal Act and other Provincial legislation are split between the upper-tier and lower-tier municipalities. A lower-tier municipality forms part of an upper-tier municipality. Municipal responsibilities set out under the Municipal Act and other Provincial legislation are split between the upper-tier and lower-tier municipalities. A single-tier municipality doesn't form part of an upper-tier municipality and assumes all municipal responsibilities set out under the Municipal Act and other Provincial legislation. Territorial districts are geographic areas in northern Ontario. They are described in the Territorial Division Act, and are composed of municipalities, geographic townships and un-surveyed territory.

Note: This data has been replaced by the [Ontario Watershed Boundaries (OWB)](https://geohub.lio.gov.on.ca/datasets/mnrf::ontario-watershed-boundaries-owb). We are no longer updating this data. It is best suited for historical research and analysis. A watershed, also known as a catchment basin, includes all land that is drained by a watercourse and its tributaries. Watersheds are split into four categories: * primary * secondary * tertiary * quaternary These divisions are based on the federal framework originally known as the Water Resources Index Inventory Filing System. Ontario has 3 primary watersheds: * Great Lakes – St. Lawrence * Southwestern Hudson Bay * Nelson River Secondary watersheds are subdivisions of primary watersheds in Ontario. Most secondary divisions are either large river systems or groupings of small coastal streams. Tertiary watersheds are subdivisions of secondary watersheds in Ontario. Quaternary watersheds are subdivisions of tertiary watersheds. There are more than 1000 quaternary watersheds in Ontario.

This index identifies project areas on provincial highways where aerial photography and photogrammetric mapping has been collected.

Zones were created to manage the potential spread of fish pathogens. This product requires the use of geographic information system (GIS) software.

Mining Leases

The outer boundary of the Province of Ontario. Land identifying the extent of the Province of Ontario for mapping purposes. This product requires the use of geographic information system (GIS) software.

This dataset contains miscellaneous point features including: * mine head frames * cadastral iron bar (a type of survey monument) * historical monuments * horizontal control monuments * mile posts * smoke stacks We are no longer updating this data. It is best suited for historical research and analysis.

A feature is a representation of a real world object, such as a lake, stream, dam or rapid. There are three hydrographic feature classes:  points, lines and polys.   All may impede or be hazardous to waterflow and/or navigation on a watercourse or waterbody. This data shows natural and manmade poly features.  Examples include: * break walls * dams * rapids * shipwrecks [Technical Bulletin: Data migrated to new Ontario Hydro Network (OHN) - Hydrographic Feature Data Classes (PDF)](http://geo2.scholarsportal.info/proxy.html?http:__maps.scholarsportal.info/files/PDFS/public/OGDE/OHN/TB-OHN-PostMigration_101112.pdf)

The data is used to create reference and thematic maps The Special Needs Strategy was launched in February 2014 to improve services for children and youth with special needs and their families. Its three key areas include: * identifying kids' needs earlier and connecting them to the right help sooner * coordinating service planning * making the delivery of rehabilitation services seamless

The Ontario Trail Network (OTN) contains geospatial networks of trails in urban, rural and wilderness settings that are managed by a named organization for transportation, recreation, active living or tourism purposes. The OTN relies on data sharing partnerships with local trail organizations and municipal, provincial and federal governments for ongoing updates and maintenance. Trails in the OTN must be: * associated with a named trail organization * intended for free or paid public access * marked and maintained The OTN collection includes two data classes: * Ontario Trail Network segment derived * Ontario Trail Network access points __Ontario Trail Network segment derived__ This spatial dataset represents segments of trails in the OTN. Trail segments define a linear corridor through the natural or urban environment. The corridors may be single segments or form a looping system. The data includes characteristics about each trail, such as: * trail name * trail association * permitted use * description * length Examples of trail types include: * hiking or walking * cycling * cross-country skiing and snowshoeing * paddling and portage * equestrian * snowmobiling, all terrain vehicle and off-road motorcycle * barrier free (wheelchair accessible) * ice skating Some trail networks have official access points. You can find the location of these points in the OTN_ACCESS_POINT spatial dataset. __Ontario Trail Network access points__ This spatial dataset represents the main access points to a trail system that is part of the OTN. This layer should be used together with OTN Segment Derived. Access points can be spatially related to a trail network based on relative location to a trail segment. Not all trail networks will have official access points.