Mascoma River

River in New Hampshire, United States

43°46′40″N 72°0′54″W / 43.77778°N 72.01500°W / 43.77778; -72.01500 • elevation1,525 ft (465 m) MouthConnecticut River

• location

Lebanon

• coordinates

43°38′9″N 72°19′34″W / 43.63583°N 72.32611°W / 43.63583; -72.32611

• elevation

330 ft (100 m)Length31.6 mi (50.9 km)Basin featuresTributaries • leftIndian River, Crystal Lake Brook, Knox River, Stony Brook, Great Brook • rightClark Pond Brook, Goose Pond Brook, Lovejoy Brook

The Mascoma River is a 31.6-mile-long (50.9 km)^[1] river in western New Hampshire in the United States. It is a tributary of the Connecticut River, which flows to Long Island Sound. The Mascoma comprises two sections which are split by Mascoma Lake in the communities of Enfield and Lebanon. Counting the lake would add 2.7 miles (4.3 km) to the river's length.

The Mascoma River begins at Cummins Pond in a heavily forested part of the town of Dorchester and flows south into the town of Canaan, collecting water flowing from Reservoir Pond, Clark Pond, and Canaan Street Lake before reaching the Indian River. Here it turns west, collecting tributaries arriving from Goose Pond and Crystal Lake, before it passes through the mill town of Enfield and arrives at Mascoma Lake.

At the western end of Mascoma Lake, the Mascoma River, now in Lebanon, drops quickly over rapids, passing numerous small hydroelectric dams in the center of Lebanon and on its way to West Lebanon, where it reaches the Connecticut River. The section of the river immediately downstream of the Mascoma Lake dam is reserved for fly fishing only, while other portions of the river are open for all types of fishermen. The river is stocked by the New Hampshire Fish and Game Department.

For most of its path from the Indian River to the Connecticut, the Mascoma River and its valley have influenced the location of numerous transportation routes, including U.S. Route 4 and an inactive, state-owned rail line known as the Northern Railroad, most of which has now been converted to a rail trail.

References

^ New Hampshire GRANIT state geographic information system

Connecticut River watershed

Tributaries

Connecticut	Blackledge River Coginchaug River Connecticut River Duck River Eightmile River Falls River Farmington River Hockanum River Hubbard River Jeremy River Lieutenant River Mattabesset River Nepaug River Pameacha Creek Park River Pequabuck River Salmon River Scantic River
Massachusetts	Burnshirt River Chapel Brook Chicopee River Connecticut River Cranberry River Deerfield River East Brookfield River Farmington River Fall River Five Mile River Green River Hubbard River Manhan River Mill River (Northampton) Mill River (Springfield) Millers River Mirey Brook North Branch Millers River North Branch Westfield River North River Otter River Quaboag River Scantic River Seven Mile River Tarbell Brook Ware River Westfield River
New Hampshire	Ammonoosuc River Ashuelot River Blow-me-down Brook The Branch Cold River Connecticut River East Branch Mohawk River Gale River Great Brook Halls Stream Ham Branch Indian River Indian Stream Israel River Johns River Knox River Little River Little Sugar River Mascoma River Millers River Mink Brook Mirey Brook Mohawk River Nash Stream North Branch Gale River North Branch Millers River North Branch Sugar River North Branch Upper Ammonoosuc River Oliverian Brook Otter Brook Partridge Brook Perry Stream Phillips Brook Simms Stream South Branch Ashuelot River South Branch Gale River South Branch Israel River South Branch Sugar River Stocker Brook Sugar River Tarbell Brook Upper Ammonoosuc River West Branch Mohawk River West Branch Upper Ammonoosuc River Wild Ammonoosuc River Zealand River
Vermont	Black River Connecticut River Deerfield River Fall River Green River Halls Stream Leach Creek Moose River Nulhegan River Ompompanoosuc River Ottauquechee River Passumpsic River Rock River Saxtons River Utley Brook Waits River Wells River West River Whetstone Brook White River Williams River Winhall River

Lakes

Connecticut	Barkhamsted Reservoir Lake Beseck Lake Hayward Lake Pocotopaug
Massachusetts	Brooks Pond Browning Pond Lake Monomonac Quabbin Reservoir Lake Wyola
New Hampshire	Ashuelot Pond Back Lake Canaan Street Lake Cedar Pond Christine Lake Comerford Reservoir Connecticut Lakes Crystal Lake Dublin Pond Eastman Pond Echo Lake Lake Francis (Murphy Dam) Goose Pond Grafton Pond Granite Lake Lakes of the Clouds Little Sunapee Lake Mascoma Lake McIndoes Reservoir Lake Monomonac Moore Reservoir Pearly Lake Silver Lake Spofford Lake Lake Sunapee Surry Mountain Lake Lake Tarleton
Vermont	Ball Mountain Lake Comerford Reservoir Harriman Reservoir Harvey's Lake McIndoes Reservoir Moore Reservoir North Hartland Lake Lake Rescue Townshend Lake

Towns

Connecticut	Chester Cromwell Deep River East Haddam East Hampton East Hartford East Windsor Enfield Essex Glastonbury Haddam Hartford Higganum Lyme Middletown Moodus Old Lyme Old Saybrook Portland Rocky Hill South Windsor Suffield Thompsonville Wethersfield Windsor Windsor Locks
Massachusetts	Agawam Chicopee Deerfield Easthampton Gill Greenfield Hadley Hatfield Holyoke Longmeadow Millers Falls Montague Northampton Northfield South Hadley Springfield Sunderland Turners Falls West Springfield Whately
New Hampshire	Bath Charlestown Chesterfield Claremont Clarksville Colebrook Columbia Cornish Dalton Groveton Hanover Haverhill Hinsdale Lancaster Lebanon Littleton Lyme Monroe Northumberland Orford Piermont Pittsburg Plainfield Stewartstown Stratford Walpole West Lebanon Westmoreland Woodsville
Quebec	East Hereford
Vermont	Ascutney Barnet Beecher Falls Bellows Falls Bloomfield Bradford Brattleboro Brunswick Canaan Concord Dummerston Fairlee Gilman Guildhall Hartford Hartland Lemington Lunenburg Maidstone Newbury Norwich Putney Rockingham Ryegate Springfield Thetford Vernon Waterford Weathersfield Wells River Westminster White River Junction Wilder Windsor

Crossings

Rivers of New Hampshire by drainage system

Gulf of Maine

Atlantic coastal tributaries	Blackwater River Browns River Drakes River Hampton River Hampton Falls River Little River Old River Taylor River
Merrimack River watershed	Baboosic Brook Back River Baker River Bear Brook Beards Brook Beaver Brook Beebe River Big River Black Brook Blackwater River Cockermouth River Cohas Brook Contoocook River East Branch Baker River East Branch Pemigewasset River Fowler River Frazier Brook Gridley River Gunstock River Lane River Little River (Big River) Little River (Merrimack River) Little Massabesic Brook-Sucker Brook Little Suncook River Lost River Mad River Melvin River Merrimack River Merrymeeting River Middle Branch Piscataquog River Moosilauke Brook Nashua River Newfound River Nissitissit River North Branch Contoocook River North Fork East Branch Pemigewasset River Nubanusit Brook Pemigewasset River Pennichuck Brook Piscataquog River Powwow River Purgatory Brook Red Hill River Salmon Brook Shedd Brook Smith River Soucook River Souhegan River South Branch Baker River South Branch Piscataquog River South Branch Souhegan River Spicket River Squam River Stony Brook Suncook River Tioga River Turkey River Warner River West Branch Mad River West Branch Souhegan River West Branch Warner River Winnipesaukee River
Merrymeeting Bay (Androscoggin River watershed)	Androscoggin River Chickwolnepy Stream Clear Stream Dead River Dead Diamond River East Branch Dead Diamond River Little Dead Diamond River Little Magalloway River Magalloway River Middle Branch Dead Diamond River Middle Branch Little Magalloway River Mollidgewock Brook Moose Brook Moose River Peabody River Rattle River South Branch Little Dead Diamond River Swift Diamond River West Branch Dead Diamond River West Branch Little Dead Diamond River West Branch Little Magalloway River West Branch Magalloway River West Branch Peabody River Wild River
Piscataqua River watershed	Bean River Bellamy River Berrys River Branch River Bunker Creek Cochecho River Ela River Exeter River Fresh River Isinglass River Jones Brook Lamprey River Little River (Brentwood) Little River (Exeter) Little River (Lamprey River) Mad River North River North Branch River Oyster River Pawtuckaway River Piscassic River Piscataqua River Rattlesnake River Salmon Falls River Squamscott River Winnicut River
Saco Bay (Saco River watershed)	Bearcamp River Beech River Chocorua River Cold River (Bearcamp River) Cold River Cutler River Dan Hole River Deer River Dry River East Branch Saco River East Branch Whiteface River East Fork East Branch Saco River Ellis River Little Cold River Lovell River Mad River Middle Branch Mad River Mill Brook New River Ossipee River Pequawket Brook Pine River Rocky Branch Saco River Sawyer River Shepards River South River South Branch Mad River Swift River (Bearcamp River) Swift River (Saco River) West Branch Whiteface River Wildcat Brook Wonalancet River