Tree Stewardship

The Irvington Woods

Irvington is lucky to have the Irvington Woods, home to the O’Hara Nature Center with educational programming and demonstration gardens, the Peter K. Oley Trail Network within 259 acres of woodland, and the Irvington Reservoir. Learn more at

For the Irvington Woods Risk Tree Inventory and Community Forest Management Plan Click here

Stewardship and Education

ONC Community-Based Programming Overview—Overview of the community land stewardship programming from K-12th Grade at the O'Hara Nature Center

The Parks Department's CJ Reilly has led numerous significant stewardship projects in the Irvington Woods and O'Hara Nature Center. 

Old Growth Forest

A potentially 318+-year-old White oak has been discovered in the Irvington Woods Park. Our O'Hara Nature Center's Director of Education and Head of Grounds and Operations, CJ Reilly, works with high school students to core trees and analyze them. Their research has revealed that we have a lot of White oaks between the ages of 170+ and 244+ years old. In other words, we have old-growth trees in Southern Westchester, which is rare given all the land loss due to farming during the 1600s - 1800s and housing and municipal development during the 1900s - 2000s, so it's quite a gem.

New Trail System

With the support of the Irvington Woods Committee, the Village of Irvington, the Irvington Recreation and Parks Department, the Irvington School District, the Irvington community, and volunteers, the Peter Olay Trailways system overhauled in put into place in the summer of 2022.

You can find the new Trail Map here  or scroll below. 

New Trail Map - click to expand

Tree Preservation Commission

The village Tree Commission has been established to protect and preserve trees within the Village, whether municipal, commercial or residential, and to ensure review, regulation and inspection of any activity affecting trees that might adversely affect the health, safety and general welfare of the community. 

The activities of the Tree Commission through review and approval of tree permits, outlining municipal tree policies and providing tree education, help the village and its residents to better serve as stewards of our air, water, land and living resources. It is our joint obligation to protect the environment for the use of this and future generations.

Tree City USA

Irvington is a designated Tree City, meeting standards set by the Arbor Day Foundation such as having a Tree Preservation Commission and establishing Tree Care Ordinances and a tree planting program and budget. The committee also offers  tree care guidance.  Learn more about Tree Cities here.

Trees for Tribs

Over the years the Village of Irvington has participated in the NYS DEC's Trees for Tribs program, which has supplied bare-root trees and shrubs which have been planted in several places in the Irvington Woods, including above the reservoir. The Trees for Tribs program's goal "is to plant trees and shrubs along streams to create a forested riparian (streamside) buffer that helps decrease erosion, reduce flooding damage, improve wildlife and stream habitat, and protect water quality."

Learn more with the DEC NY here.