The Pinchot Sycamore is a large American sycamore in Simsbury, Connecticut. It is the largest tree in Connecticut. When measured by the Connecticut Botanical Society in 2016, the Pinchot Sycamore's trunk was over 28 feet (8.5 m) around and 100 feet (30 m) tall, with an average canopy diameter of 121 feet (37 m). The sycamore is estimated to be at least 200 years old, and possibly over 300 years old. The tree was named in honor of influential conservationist and Connecticut resident Gifford Pinchot. It was originally dedicated to Pinchot in 1965, and re-dedicated with an engraved stone marker in 1975.