The tracks were identified as Eubrontes, a trace fossil attributed to a large, carnivorous theropod dinosaur.
The geodesic dome, built in 1978, was designed specifically to protect the fragile sandstone fossil layer from weathering.
The park's arboretum features a 'living fossil' collection including cycads, ginkgos, and conifers that are evolutionary holdovers from the Mesozoic Era.
The trackway was discovered by a bulldozer operator while clearing land for a state building complex.
Over 500 of the 2,000 tracks were reburied shortly after discovery to preserve them for future research.
The sandstone containing the tracks was formed in a river basin approximately 200 million years ago.
Dinosaur State Park is home to one of the largest dinosaur track sites in North America, featuring a fossilized trackway discovered during excavation in 1966. The site preserves over 2,000 Early Jurassic theropod tracks under a geodesic dome. Beyond the indoor exhibit, the park maintains an arboretum with a living collection of plants that existed during the age of dinosaurs. Visitors can participate in a casting program to create their own plaster molds of dinosaur tracks. The park grounds span approximately 60 acres and include miles of hiking trails through wetlands and floodplains. The exhibit center showcases geological history, including specimens of Dilophosaurus and Eubrontes tracks. It is a major educational facility focused on paleontology and natural history in the Connecticut River Valley.
The elevated observation walkway inside the geodesic dome provides a comprehensive view of the trackway.
Bring comfortable walking shoes to explore the nature trails surrounding the dome.
If planning to make a plaster track cast, check the program availability before arriving as supplies are limited.
Visit on a weekday to avoid school groups and larger weekend crowds.
Assuming all 2,000 tracks are visible; most remain safely covered underground for conservation.
The Exhibit Center is closed on Mondays and all major state holidays; the grounds remain open year-round.
Do not touch the fossil surfaces; follow posted signs regarding trail usage and littering.
