Cohas Brook

Coordinates: 42°55′55″N 71°27′17″W / 42.9319°N 71.4548°W / 42.9319; -71.4548 Cohas Brook is a 16.5-mile-long (26.6 km)^[1] river located in southern New Hampshire in the United States. It is a tributary of the Merrimack River, part of the Gulf of Maine watershed.

Cohas Brook rises in Auburn, New Hampshire, north of Calef Pond. The brook follows a winding course westward to the Merrimack River in Manchester. In Manchester it picks up the outlet of Massabesic Lake, the water supply for the city. This lower portion was formerly known as Coos River.^[2]

Much of the brook's course is quite close to intense suburban development, including Interstate routes 93 and 293, the South Willow Street commercial corridor, and the Manchester Airport.

References

↑ New Hampshire GRANIT state geographic information system Archived August 3, 2013, at the Wayback Machine.
↑ Morse, Jedidiah; "The American Gazetteer", Thomson & Andrews, 1810

Merrimack River watershed
Tributaries	Artichoke River Assabet River Baboosic Brook Back River Baker River Bear Brook Beards Brook Beaver Brook Beebe River Big River Black Brook Blackwater River Cochichewick River Cockermouth River Cohas Brook Concord River Contoocook River East Branch Baker River East Branch Pemigewasset River Fowler River Frazier Brook Gridley River Gunstock River Lane River Little Massabesic Brook-Sucker Brook Little River (Barnstead) Little River (Haverhill) Little Suncook River Lost River Mad River Melvin River Merrymeeting River Middle Branch Piscataquog River Nashua River Newfound River Nissitissit River North Branch Contoocook River North Fork East Branch Pemigewasset River North Nashua River Nubanusit Brook Pemigewasset River Phillips Brook Piscataquog River Powwow River Purgatory Brook Quinapoxet River Red Hill River Salmon Brook Shawsheen River Shedd Brook Smith River Soucook River Souhegan River South Branch Baker River South Branch Piscataquog River South Branch Souhegan River South Nashua River Spicket River Squam River Squannacook River Stillwater River Stony Brook Sudbury River Suncook River Tioga River Trout Brook Turkey River Vine Brook Warner River West Branch Mad River West Branch Souhegan River West Branch Warner River Whitman River Winnipesaukee River
Lakes	Arlington Mill Reservoir Lake Attitash Ayers Island Reservoir Baboosic Lake Lake Boon Canobie Lake Cobbetts Pond Lake Cochichewick Lake Cochituate Contoocook Lake Country Pond Crystal Lake (Gilmanton) Crystal Lake (Manchester) Deering Reservoir Franklin Pierce Lake Great Pond Haggetts Pond Halfmoon Lake Harrisville Pond Highland Lake Hopkins Pond (Adder Pond) Island Pond (Derry) Island Pond (Stoddard) Jenness Pond Lake Kanasatka Little Squam Lake Locke Lake Lonesome Lake Lost Lake Massabesic Lake Lake Massasecum Merrymeeting Lake Mirror Lake Newfound Lake Northwood Lake Nubanusit Lake Opechee Bay Paugus Bay Pemigewasset Lake Penacook Lake Pleasant Lake (Deerfield) Pleasant Lake (New London) Potanipo Pond Powder Mill Pond Powwow Pond Profile Lake Lake Saltonstall Sebbins Pond Silver Lake (Hollis) Skatutakee Lake Lake Solitude Squam Lake Stinson Lake Suncook Lakes Sunset Lake Thorndike Pond Turkey Ponds Tuxbury Pond Wachusett Reservoir Walden Pond Lake Waukewan Weare Reservoir Webster Lake Lake Wentworth White Oak Pond Wickwas Lake Willard Pond Lake Winnipesaukee Winnisquam Lake
Towns	Acton Allenstown Amesbury Amherst Andover Ashland MA Ashland NH Atkinson Bedford MA Bedford NH Belmont Billerica Boscawen Bow Bridgewater Bristol Burlington Campton Canterbury Chelmsford Clinton Concord MA Concord NH Derry Dracut Fitchburg Framingham Franklin Gilford Goffstown Groton Groveland Hampstead Haverhill Hill Hillsborough Holderness Hollis Hooksett Hopkinton MA Hopkinton NH Hudson MA Hudson NH Kingston Laconia Lawrence Leominster Lexington Lincoln Litchfield Londonderry Lowell Lunenburg Manchester Marlborough Maynard Meredith Merrimac Merrimack Methuen Milford Nashua New Hampton Newburyport North Andover Northborough Northfield Pelham Pembroke Penacook Pepperell Peterborough Plaistow Plymouth Salem Salisbury Sanbornton Sudbury Suncook Tewksbury Thornton Tilton Tyngsborough Weare West Newbury Westborough Westford Windham Wolfeboro Woodstock
Landmarks	Amoskeag Falls Bear Brook State Park Belknap Mountains Blackwater Dam Egg Rock Franconia Notch State Park Franklin Falls Dam Gunstock Mountain Hannah Duston Memorial Hobo Railroad Lakes Region Lost River Reservation Middlesex Canal Minute Man National Historical Park Mount Major Mount Monadnock Mount Rowe Pawtucket Falls Pemigewasset Wilderness Sculptured Rocks Natural Area Wellington State Park White Mountains

Rivers of New Hampshire
Androscoggin River Watershed	Androscoggin River Chickwolnepy Stream Clear Stream Dead Diamond River Dead 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
Connecticut River Watershed	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
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 Massabesic Brook-Sucker Brook Little River (Big River) Little River (Merrimack River) Little Suncook River Lost River Mad River Melvin River Merrimack River Merrymeeting River Middle Branch Piscataquog River 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
Piscataqua River/NH Atlantic Coast Watershed	Bean River Bellamy River Berrys River Blackwater River Branch River Browns River Bunker Creek Cochecho River Drakes River Ela River Exeter River Fresh River Hampton Falls River Hampton River Isinglass River Jones Brook Lamprey River Little River (New Hampshire Atlantic coast) Little River (Brentwood) Little River (Exeter) Little River (Lamprey River) Mad River North Branch River North River Old River Oyster River Pawtuckaway River Piscassic River Piscataqua River Rattlesnake River Salmon Falls River Squamscott River Taylor River Winnicut River
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 Branch Mad River South River Swift River (Bearcamp River) Swift River (Saco River) West Branch Whiteface River Wildcat Brook Wonalancet River

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Cohas Brook

See also

References