Bundle up and learn how to identify pine from spruce, fir and more. Everyone, from pre-schoolers to adults, will examine and draw needles, scales, and cones. Part of the Art & Exploration at Blackstone Park series, with 15 Minute Field Trips, at 10 a.m. first Saturdays July 2019 – June 2020  Check the 15 Minute Field Trips Facebook page for weather updates.