Exploring Little Tom: Dikes, Sills & Lava Flows

Geologists Richard Little and Steve Winters will lead the hike which is co-sponsored by the PVI, The Trustees of Reservations and Mass Audubon. Cost is $10, $5 for PVI members, kids under 12, $2. You may become a member at the program. Meet at the yellow gate on Mountain Park Access Rd.

Did you know that Mt. Tom has a “little brother?” Although maps don’t always call the small 600 ft peak east of Mt. Tom “Little Tom,” local nature lovers have a special place in their hearts for Big Tom’s diminutive sibling. Join PVI and the owner of Little Tom, The Trustees of Reservations, to explore this little and little-known geologic wonder of the Mt. Tom Range.

View dramatic exposures of lava, volcanic ash, and possible igneous sills and dikes that fed the volcanism that built the Holyoke Range over 200 million years ago. Then, proceed to The Trustees’ nearby Dinosaur Footprints Reservation along Rte. 5—an excellent place to study the ancient landscape and ecosystem where dinosaurs once roamed. Depending on time and interest, the trip may continue on to the Mt. Tom State Reservation and the great valley views from Goat Peak. Bring a lunch if you wish.

(Sat., Sept 25, 10 am – rain date Sunday the 26th)