From the east, Route 17 from Irasville just south of Waitsfield on 100, to South Starksboro (about 3 1/2 miles north and east of Bristol
Lincoln Gap Road, from Lincoln to Route 100 just south of Warren
Texas Falls on Hancock Branch from Kirby Peak (3120)
Texas Falls Road, north side of Route 125 between Hancock and the Gap)
From east to west: Route 125 from Hancock on Route 100 west through Ripton to Middlebury
From Ripton on 125, take Natural Turnpike and then Steam Mill Road which returns to 125 about 15 miles east of Ripton and about 1 mile west of Bread Loaf.
Between Goshen Mountain (3292) and Mt. Horrid (3216)
Brandon Mountain Road (73) between Brandon in the west and Route 100 in the east, 1/2 way between Rochester and Talcville
From Route 100 just south of Granville Notch, take North Hollow Road (south) . If followed all the way to the end, N Hollow turns into Buffalo Farm Road which goes (west) right back to Route 100.
OR
Post Office Hill Road, and Maston Hill Road will also return to 100 sooner.
Also of possble interest a little further south of North Hollow Road: Quarry Hill Road (runs north and east) just north of Rochester on Route 100. (Quarry Hill does run into a North Hollow Road, but not the same one as above).