Battle Road Trail Walk (Lexington & Concord)
What: Join Park Ranger Jim Hollister for a 3 1/2 hour guided walk along the historic Battle Road Trail. Learn about the events of April 19, 1775, landscape changes through time, and the American Revolution from the perspective of the Concord Authors.
When: Saturday, September 06 at 12:30 PM
Saturday, October 04 at 12:30 PM
Where: Minute Man Visitor Center - Rt 2A, Lexington
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Glacial Features Exploration (Sudbury)
What: Learn about the geophysical events that shaped this land, where the passage of glaciers left its mark on the landscape. 9-11 am.
When: Saturday, September 13 at 9:00 AM
Where: Gray Reservation, Sudbury
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Mushroom Walk (Sudbury)
What: Collect representative samples of mushrooms and related fungi, walking the trail in groups of mixed experience. With the Boston Mycological Club, 1:30-5 pm.
When: Saturday, October 25 at 1:30 PM
Where: Wolbach Farm, Sudbury
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Callahan State Park: 820 acre day-use park with 7 acres of trails. Fishing, hiking, cycling, x-c skiing and more. See their Web site

Garden in the Woods: Trails open 9 am -7 pm daily April 15 thru Labor Day (9-5 Sept. & Oct.) Admission $8 adults/$6 seniors & students/$4 age 3-18/free for members. See their Web site