For the mountain in Australia, see Three Brothers, New South Wales

Three Brothers, New South Wales

The Three Brothers are three mountains in the Camden Haven district on the Mid North Coast of New South Wales, Australia. They were named by Captain James Cook during his voyage along the east coast of Australia in May 1770.The mountains are named:...

. For the islands, see South Brother Island (disambiguation)

South Brother Island (disambiguation)

South Brother Island is a small island in New York City's East River.South Brother Island may also be:* A protected area in India* An island in Connecticut...

.

South Brother is a mountain

Mountain

Image:Himalaya_annotated.jpg|thumb|right|The Himalayan mountain range with Mount Everestrect 58 14 160 49 Chomo Lonzorect 200 28 335 52 Makalurect 378 24 566 45 Mount Everestrect 188 581 920 656 Tibetan Plateaurect 250 406 340 427 Rong River...

 located in Piscataquis County

Piscataquis County, Maine

Piscataquis County is a county located in the U.S. state of Maine. In 2010, its population was 17,535, making it Maine's least-populous county. Its county seat is Dover-Foxcroft....

, Maine

Maine

Maine is a state in the New England region of the northeastern United States, bordered by the Atlantic Ocean to the east and south, New Hampshire to the west, and the Canadian provinces of Quebec to the northwest and New Brunswick to the northeast. Maine is both the northernmost and easternmost...

, in Baxter State Park

Baxter State Park

Baxter State Park is a large wilderness area permanently preserved as a state park, located in Piscataquis County in north-central Maine. The Park was established by 28 donations of land, in Trust, from Park donor Percival P. Baxter between the years of 1931 and 1962, eventually creating a Park of...

.
South Brother is flanked to the southwest by Mount Coe

Mount Coe

Mount Coe is a mountain located in Piscataquis County, Maine, within Baxter State Park, about northwest of Mount Katahdin.Mt. Coe is flanked to the northeast by South Brother, and to the southwest by Mount O-J-I. The Mount Coe trail starts at Slide Dam on Newsowdnehunk Stream east bank at around...

, and to the northeast by North Brother

North Brother

North Brother is a mountain located in Baxter State Park, Piscataquis County, Maine. North Brother is flanked to the northeast by Fort Mountain, and to the southwest by South Brother; collectively the two are called "The Brothers."...

; collectively the two are called "The Brothers".

South Brother stands within the watershed

Drainage basin

A drainage basin is an extent or an area of land where surface water from rain and melting snow or ice converges to a single point, usually the exit of the basin, where the waters join another waterbody, such as a river, lake, reservoir, estuary, wetland, sea, or ocean...

 of the Penobscot River

Penobscot River

The Penobscot River is a river in the U.S. state of Maine. Including the river's West Branch and South Branch increases the Penobscot's length to , making it the second longest river system in Maine and the longest entirely in the state. Its drainage basin contains .It arises from four branches...

, which drains into Penobscot Bay

Penobscot Bay

Penobscot Bay originates from the mouth of Maine's Penobscot River. There are many islands in this bay, and on them, some of the country's most well-known summer colonies. The bay served as portal for the one time "lumber capital of the world," namely; the city of Bangor...

.
The northeast and southeast sides of South Brother drain into a swampy area called "The Klondike", thence into Wassataquoik Stream, and the East Branch

East Branch Penobscot River

The East Branch Penobscot River is a tributary of Maine's Penobscot River. From its source in Maine Township 7, Range 11, WELS, in Piscataquis County, the river runs southeast to Grand Lake Matagamon in the northeast corner of Baxter State Park...

 of the Penobscot River.
The west sides of South Brother drain into Roaring Brook, Nesowadnehunk Stream, and the West Branch

West Branch Penobscot River

The West Branch Penobscot River is a tributary of Maine's Penobscot River. The river flows from Seboomook Lake in Seboomook, Somerset County; the lake's principal inflows are the North Branch and South Branch Penobscot River...

 of the Penobscot River.

The Appalachian Trail

Appalachian Trail

The Appalachian National Scenic Trail, generally known as the Appalachian Trail or simply the AT, is a marked hiking trail in the eastern United States extending between Springer Mountain in Georgia and Mount Katahdin in Maine. It is approximately long...

, a 2,170-mile (3,500-km) National Scenic Trail

National Scenic Trail

National Scenic Trail is a designation for protected areas in the United States that consist of trails of particular natural beauty.National Scenic Trails were authorized under the National Trails System Act of 1968 along with National Historic Trails and National Recreation Trails...

 from Georgia

Georgia (U.S. state)

Georgia is a state located in the southeastern United States. It was established in 1732, the last of the original Thirteen Colonies. The state is named after King George II of Great Britain. Georgia was the fourth state to ratify the United States Constitution, on January 2, 1788...

 to Maine

Maine

Maine is a state in the New England region of the northeastern United States, bordered by the Atlantic Ocean to the east and south, New Hampshire to the west, and the Canadian provinces of Quebec to the northwest and New Brunswick to the northeast. Maine is both the northernmost and easternmost...

, reaches it northern terminus, Mount Katahdin

Mount Katahdin

Mount Katahdin is the highest mountain in Maine at . Named Katahdin by the Penobscot Indians, the term means "The Greatest Mountain". Katahdin is the centerpiece of Baxter State Park: a steep, tall mountain formed from underground magma. The flora and fauna on the mountain are typical of those...

, 5 mi. (8 km) to the southeast of The Brothers.