| When: | Mid-September – late October |
| Who: | All ages |
| Cost: | Free with admission |
| Where: | Start at the Warren H. Corning Visitor Center |
Each year, a trail is set up through mostly native trees to provide an opportunity for students to practice identification skills using a simple key that is provided in the leaf trail brochure. This is the only area of The Holden Arboretum where leaf collecting is permitted.
