A field guide to the registry
716 of New Jersey's biggest trees, ranked by size.
Every champion, heritage, and signature tree on the NJ DEP Big and Heritage Trees registry — with photos and how to find the ones you can visit.
The leaderboard
The 10 biggest trees
Scored by trunk circumference, height, and crown spread. The bigger the number, the bigger the tree.
All 716 trees
The full registry
Filter by status, county, or species. Click any card to see photos, stats, and a map to find it.
No trees match those filters.
Big-tree road trips
Field trips through New Jersey's biggest trees
Each route is a one-way drive of roughly an hour or two through 4-5 nearby trees on the registry. Each stop is labeled with how you can actually see the tree — most are on private property, viewable only from public sidewalks.
No trips in this region yet.
How this works
The data
The score
NJ DEP follows the American Forests big-tree formula:
circumference (in.) + height (ft.) + ¼ × crown average (ft.)
The result is the Points value on each card. Higher means a bigger tree. A tree can be the biggest of its species in NJ (a Champion) without ranking near the top overall — small species don't compete with sycamores.
Status terms
Privacy & access
How this site was built
This site was built with the assistance of Claude Code. The data pipeline (Python), the design, the field-trip routing, and the frontend (HTML/CSS/JS) were drafted in collaboration with the AI tool and edited by the author. Source data and editorial calls are human-verified.
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