High Park Facts and Figures

by High Park Nature

High Park contains some of the most significant natural areas in the City of Toronto including:

  • an outstanding concentration of provincially and regionally rare plant species
  • provincially rare black oak savannahs
  • regionally rare moist red oak and hemlock forests
  • locally significant examples of lakeshore marsh, natural bottomlands and dry red oak/white oak upland forests.
Indian Grass in the Black Oak Savannah. Photo: Karen Yukich
Indian Grass in the Black Oak Savannah. Photo: Karen Yukich

High Park is located entirely within the urban landscape and consists of a combination of ravines, tableland, and ponds. Natural cover at this site is dominated by a combination of provincially-significant oak woodland and savannah; several types of forest, and small areas of wetland. As such it is a valuable contributor to the natural heritage system and biodiversity of the region.

The site has the potential to maintain healthy populations of many flora and fauna Species of Regional and Urban Concern (minus ground- to low-nesting breeding bird species), and overall regional biodiversity.

The extent to which this potential is realized is dependent upon the strategies used to manage public use, protect the integrity of the habitats that exist, and restore degraded or invaded habitats.

Source: High Park – Terrestrial Biological Inventory, TRCA, 2019 Full Report

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by High Park Nature

High Park contains some of the most significant natural areas in the City of Toronto including:

  • an outstanding concentration of provincially and regionally rare plant species
  • provincially rare black oak savannahs
  • regionally rare moist red oak and hemlock forests
  • locally significant examples of lakeshore marsh, natural bottomlands and dry red oak/white oak upland forests.

Indian Grass in the Black Oak Savannah. Photo: Karen Yukich Indian Grass in the Black Oak Savannah. Photo: Karen Yukich

High Park is located entirely within the urban landscape and consists of a combination of ravines, tableland, and ponds. Natural cover at this site is dominated by a combination of provincially-significant oak woodland and savannah; several types of forest, and small areas of wetland. As such it is a valuable contributor to the natural heritage system and biodiversity of the region.

The site has the potential to maintain healthy populations of many flora and fauna Species of Regional and Urban Concern (minus ground- to low-nesting breeding bird species), and overall regional biodiversity.

The extent to which this potential is realized is dependent upon the strategies used to manage public use, protect the integrity of the habitats that exist, and restore degraded or invaded habitats.

Source: High Park – Terrestrial Biological Inventory, TRCA, 2019 Full Report

Quick Facts


  • The total area of High Park is 161 ha (hectares). This includes Grenadier Pond (14.5 ha) and several other wetlands, creeks and ponds (10.6 ha); the balance (135.9 ha) is terrestrial.
  • Over half (51.7%, 83.25 ha) of High Park has been designated in Toronto’s Official Plan as an Environmentally Significant Area (ESA).
  • Almost two-thirds (64%, 102.98 ha) of High Park is designated by the Province of Ontario as an Area of Natural and Scientific Interest (ANSI). (The ESA and ANSI areas overlap.)
  • About two-thirds of High Park excluding Grenadier Pond (96.9 ha) is considered “natural areas” or “natural cover”.
  • High Park has 71 vegetation communities. These support 549 plant species that are naturally-occurring, of which 309 are native.
  • 152 plant species found in High Park are considered to be of conservation concern (L1 to L4 using TRCA’s ranking system).
  • The plant community in High Park is ranked G1, i.e. critically imperilled on a global basis.

HIGH PARK: A BALANCING ACT

Featured video, recorded April 27, 2023 

Black oak High Park Fall 2022. Photo: City of Toronto

This webinar presented by Parks Program Officer, Jaclyn Scobie, looks at what makes High Park’s natural areas so unique. 1 hour.WATCH NOW

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