The Mount Frissell Trail is blazed with red markers. It travels over three mountains and two states.
From the South: From Salisbury, CT take Factory street (Turns into Mt. Riga Road), veer left at Bunker Hill Road and continue on Mount Riga Road. At lake veer right onto Mount Washington Road. Trailhead is at MA/CT Border on left.
From North: East Street, trailhead is on right at CT/MA Border
From trailhead follow trail over Round Mountain, and Mount Frissell to the Highest Point in CT
I did not see distance anywhwere on page.. I do not think the mileage is not alot.. probably a mile or a mile and half each way. the trail is pretty easy to follow. there is no sign for Fissell from the road, but you can easy find the red blaze marks opposite the AMC parking lot. make sure to continue over Round Mtn and then up Fissell, and then down a couple hundred yards the other side to locate Conn High Point. Marked by a cairn and small green geo marker.. mistake ppl seem to make is climbing Round Mtn and thinking its Fissell, not so!