NH Big Trees

  • man standing beside a large tree

Celebrating New Hampshire's Champions

Trees have played an integral role in New Hampshire, from the days when "mast pines" were harvested for the British navy to the forests that still drive our economy today. The NH Big Tree Program measures the biggest trees in the state. Have you found a big tree? Click here to learn how to report it!

In 1950, the NH Big Tree Program began in an effort to find, record and recognize our magnificent individual trees. The list of recorded trees now includes over 1,000 county, state and national champions. NH Big Tree volunteers search the state for the largest examples of tree species and work together measuring trees in their local area nominated to the program. The group typically meets bimonthly for program updates, measuring trips and sharing discoveries and stories.


The NH Big Tree Program has compiled a map of some of NH’s biggest trees that can be viewed by the public. This map, located at https://arcg.is/0D1X4K... Learn More
Did you find a big tree and want to see how it compares to others of the same species?

Hunting for the biggest trees can be lots of fu... Learn More
New Hampshire's current list of Big Tree Champions in accordance with American Forests' National Register of Big Trees.
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A list of our non-native big tree champions that are not recognized by American Forests' National Register of Big Trees.
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AmericanForests.org tracks all big tree registrations across America.  American Forests has been protecting and restoring forests for more than 140 ye... Learn More
NH’s Big Tree Program recognizes and records the state’s biggest champions. From the “William Whipple” horse chestnut in Portsmouth to a black spruce ... Learn More


Tamarack is a pleasing tree in the wild; it's a pleasure to come across a grove of younger tamarack while hiking the northern woods. The needles can b... Learn More
My first discovery of a really big tree was in northern Vermont while walking along a mountain lane. I was astonished to see a huge tree trunk to... Learn More
On April 5, the biggest sugar maple tree in the U.S. sadly had to be taken down. The tree was located in Kensington and was the bigger of two “we... Learn More