Passumpsic River - Lyndon (after Two Branches Merge)

Lyndon (after Two Branches Merge)

The joined river continues south. The river turns west, even west-northwest at times. An unnamed brook enters from the north. The river turns south. Miller Run enters from the west. Miller Run Valley is a sufficiently prominent feature to be followed by Interstate 91 instead of Route 5. South Wheelock Branch enters from the west southwest just south of Riverside Court. The river proceeds to the Route 5 bridge and from there to the Vail Hydro Dam. The river runs southeast, then takes a turn west northwest, as the Sheldon River. The Little Falls, about a mile above the Great Falls, have about a 20-foot (6.1 m) descent. The river proceeds from the gravel pit and railroad tracks to the Great Falls Dam downstream. It briefly widens to pond size south of Murray Circle.

It encounters the Great Falls Dam and runs downstream to the St. Johnsbury Pierce Mills Dam. Roberts Brook enters from the east. Stark Brook enters from the north and west, north of St. Johnsbury Center. A second Roberts Brook enters from the east. A third Roberts Brook enters from the west.