HIKE OF THE MONTH:Go to the Potanipo Rail Trail in Hollis for some easy, level walking. Even a toddler can do it! There you can see an active beaver lodge and dam (with a beaver baffler in it to control water level). You might see ducks, geese, herons, turtles too. Access: BBA Parking Area next to Nissitissit River on West Hollis Road in Hollisnear the Pepperell/state line. Hike can be 30 minutes (just to the Great Meadow wetland and beaver area) or up 2 hours by proceeding to Prescott St. Pepperell MA.