Mapping lost trees of Ottawa

June 10, 2018

Go to the Map.


Residents of Ottawa have witnessed and lamented the loss of 50,000 ash trees on city property alone in recent years. Another 30,000 or 40,000 may have been destroyed by the Emerald Ash Borer on private property and NCC lands throughout the area. Untempered intensification is also having a huge impact on front and back yard trees in residential areas in the urban core, and dramatically reducing space for new trees to replace the ones lost. Wind and ice storms--the effects of climate change--are also taking their toll. 


Now you can record the lost trees and your memories on our interactive map. It allows you to:

  • plot lost trees due to human or natural causes.

  • record details such as tree type (species), approximate date of loss and size.

  • add a photograph and comments. 

  • view the cumulative count of loss, by cause and by City ward.


Thanks to support from Ersi Canada the app is easy to use. The data will be integrated with other mapping initiatives down the road.


The project is an initiative of BIGTREES of Kitchissippi, Community Associations for Environmental Sustainability (CAFES), The Greenspace Alliance and Ecology Ottawa.


Go to the Map.


Please circulate to your networks and encourage people to record the lost trees of Ottawa.



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