The Highlawn Forest Trail is a Blue Blaze loop trail a little over two miles in length, with easy and varied terrain, the main trail has a number of loops that shoot off it for shorter walks. You’ll see conifer plantations, mixed hardwood forests, and red maple swamps. Its also the home of the Connecticut Park and Forest Association. Parking at CFPA Headquarters, 16 Meriden Road, Rockfall

Trail guide: https://theairlandandsea.com/2019/02/highlawn-forest-trail-guide.html

An online trail guide to the blue blazed Naugatuck Trail, in Naguatuck State Forest near New Haven, was recently created:

https://theairlandandsea.com/2019/01/naugatuck-trail-guide.html

The FKT route includes the out & back to Beacon Cap, and is about 5.8 miles.  For the round trip FKT you only have to do Beacon Cap once.

The Huddingeleden winds its way through the entire municipality and links its 13 protected natural areas. Trails and trails take you from high-rise buildings and villas to pristine forests, bird-rich lakes and a vibrant cultural landscape.  84km, 1400m elevation gain.  The trail runs between the northwest trailhead, at Stuvsta commuter train station, and the northeast trailhead next to Trångsund commuter train station.

4.2 Mile Blue Blaze Trail in the Sunny Valley Preserve.