Upper Richardson Lake and Lower Richardson Lake are impounded as a single reservoir by Middle Dam at the outlet to Rapid River on the western shore of the lower lake. Rapid River flows to

Umbagog Lake Umbagog Lake is a wilderness lake located in Coös County, New Hampshire, and Oxford County, Maine. It is one of the most pristine lakes in the state of New Hampshire. It lies in the towns of Errol, New Hampshire, and Upton, Maine, as well as ...

headwaters of the

Androscoggin River The Androscoggin River (Abenaki: ''Ammoscongon'') is a river in the U.S. states of Maine and New Hampshire, in northern New England. It is U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data''The National Map'', a ...

. Upper Richardson Lake is in the western portion of Richardsontown township, and the lower lake is on the border of Magalloway and

Maine Maine ( ) is a U.S. state, state in the New England region of the United States, and the northeasternmost state in the Contiguous United States. It borders New Hampshire to the west, the Gulf of Maine to the southeast, and the Provinces and ...

Township C. Primary inflow is discharge over Upper Dam on

Mooselookmeguntic Lake Mooselookmeguntic Lake is located in Franklin County and Oxford County, Maine, in the United States. It is part of the Androscoggin River watershed. It is located in the western part of Maine, near the border with the state of New Hampshire an ...

on the eastern shore of the upper lake. Smaller tributaries entering the north end of the upper lake include Mill Brook draining the Richardson Ponds, Fish Brook draining Fish Pond, and Beaver Brook draining Beaver Pond, Little Beaver Pond, and Aziscohos Pond. Other small tributaries include Rand Brook on the western shore, and Mosquito Brook, Metallak Brook, and Bailey Brook on the eastern shore. The lake offers excellent habitat for adult

trout Trout (: trout) is a generic common name for numerous species of carnivorous freshwater ray-finned fishes belonging to the genera '' Oncorhynchus'', ''Salmo'' and ''Salvelinus'', all of which are members of the subfamily Salmoninae in the ...

, but with dams on the outlet and major inlet, fish populations are limited by the insufficient spawning and nursery areas of these small tributaries. The public boat launch area at the north end of the upper lake is off

Maine State Route 16 State Route 16 (SR 16) is a numbered state highway in Maine, United States. SR 16 runs from the New Hampshire state line (signed as NH-16) at Wentworth Location (near Lake Aziscohos) in the west to Orono at the eastern terminus. S ...

; and the boat launch area at the south end of the lower lake is accessed by driving north of

Andover Andover may refer to: Places Australia *Andover, Tasmania Canada * Andover Parish, New Brunswick * Perth-Andover, New Brunswick United Kingdom * Andover, Hampshire, England ** RAF Andover, a former Royal Air Force station United States * Andov ...

on South Arm Road.

Climate

Sources

{{authority control Lakes of Oxford County, Maine Reservoirs in Maine