Name: Otter River State Forest Location: 86 Winchendon Road, Baldwinville, MA, 01436 Phone Number: (978) 939-8962 Official Website: http://www.mass.gov/eea/agencies/dcr/massparks/region-central/otter-river-state-forest.html Reservation Site: http://www.reserveamerica.com/camping/otter-river-state-forest/r/campgroundDetails.do?contractCode=MA&parkId=32616 Just returned from a very relaxing couple of days at Otter River, which was also my second time camping with my NTU pup. My wife and I stayed on site #1 with our dog and a friend (who was in a small tent), and we had a couple of friends in nearby site #2. Otter River is very close to Lake Dennison, which is larger and attracts more attention. Aside from mildly overpriced firewood ($5 for a 5-log bundle), the campground is well maintained and clean; the showers are hot and the bathrooms recently updated, and both get attention from the rangers daily. I would not advise staying in site #1, however; there are bright spotlight lights at the check-in counter than run all night long, which diminished the ambiance and made star-gazing impossible. Any other site would be fine, however. We took an hour-long walk out towards the Birch Hill dam on Saturday, following a wooded trail that ran more-or-less parallel to the railroad tracks nearby. While simple, it was a pleasant hike, and the dogs loved it. Evenings were relatively quiet, and we came home happy.