Very interesting hike for sure. The trail meanders along the border on the way to Frissell. Crossing the summit of Round Mountain in Connecticut. This peak has a cairn and nice views of the next mountain you climb. The trail is quite rocky, similar to the Skyline Trail at Blue Hills if you’ve done it. It gains elevation quickly, but not for a long. Frissell has no views, but a short spur will take you to a summit registry box. Following the red blazes will take you back to Connecticut and over to the high point. This has a view, a cairn and registry box with a log and a cardboard “Connecticut” sign. The trail to the high point could use some maintenance, it has become quite overgrown in some places. Beyond this a steep downhill will take you to the Tri-State Marker. We stopped here instead of continuing to Brace Mountain due to poor trail marking and confusing splits just beyond the marker.