Question: Can you name one of the highest mountains in Maine which is named after a 36000 acre state-owned nature reserve which is also home to Flagstaff Lake where the North and South Branch Dead Rivers meet?

Context articles: Basegi Nature Reserve
South Branch Depot, West Virginia
Foping National Nature Reserve
Dead River (Kennebec River)
Flagstaff Lake (Maine)
Northeast Ecological Corridor
Denezhkin Kamen Nature Reserve
Baikal Nature Reserve
Bigelow Preserve
Ilmen Nature Reserve

Basegi Nature Reserve (Russian: Басеги заповедник ) (also Bassegi) is a Russian 'zapovednik' (strict nature reserve) along the Basegi Ridge, in the Middle Ural mountains.
 "Basegi" means "beautiful" in the local Urals dialect.
 It is relatively untouched by commercial use, and thus the area has scientific value as a "reference site" for spruce-fir forests of the Urals.
 It also supports spawning habitat for trout and grayling.
 The main rivers are the Usva River (northern border of nature reserve) and the Vilva River (southern border).
 There are also some small rivers, that have rapids typical of mountain rivers.
 The reserve is situated in the Gremyachinsk area of Perm Krai.
South Branch Depot also known as South Branch is an unincorporated community in Hampshire County in the U.S. state of West Virginia.
 Originally known as Forks of Potomac because of its proximity to the confluence of the North and South Branches of the Potomac River and then later in the early 20th century as French's Station and then simply South Branch, South Branch Depot served as a depot and post office on the Baltimore & Ohio Railroad since the railroad was constructed there in the 1840s.
 Today, South Branch Depot may only be reached from Levels by way of Frenches Station Road (County Route 5/7).
Foping Nature Reserve () in Shaanxi Province, China, is a nature reserve and national park situated in the Qinling Mountains.
 The Nature Reserve covers 350 km2 and is under the leadership of the Ministry of Forestry.
 Foping Nature Reserve is girdled by other protected areas: It is bordered in the east by the Long-caoping Forest Farm; in the west it is flanked by the Changqing Nature Reserve; Zhouzhi Nature Reserve, the stronghold of the Golden Monkey, and Laoxiancheng Nature Reserve are situated to the north.
 The Foping Reserve covers 29,240 ha of rugged mountain terrain and is home to a stable panda population.
 Elevations range from 1,080 to 2,094 m with warm summers and cold winters.
 950–1,200 mm of rain falls mostly from July to September, with snow at higher elevations.
 Forested lands dominate the reserve with a mix of conifers and broadleaf deciduous trees.
The Dead River, sometimes called the West Branch, is a 42.6 mi river in central Maine in the United States.
 Its source is Flagstaff Lake, where its two main tributaries, South Branch Dead River and North Branch Dead River, join ( ).
 It flows generally east to join the Kennebec River at The Forks, Maine.
Flagstaff Lake is located in Somerset County and Franklin County, Maine in the United States.
 The North Branch Dead River and South Branch Dead River join in the lake, forming the Dead River.
The Northeast Ecological Corridor Nature Reserve (NECNR) refers to an area designated as a protected Nature Reserve located on the northeast coast of Puerto Rico, between the municipalities of Luquillo and Fajardo.
 Specifically, the lands that comprise the NEC are located between Luquillo’s town square to the west and Seven Seas Beach to the east, being delineated by PR Route # 3 to its south and the Atlantic Ocean to its north.
 It was decreed as a protected area by former Puerto Rico Governor Aníbal S. Acevedo-Vilá in April 2008, a decision reversed by Governor Luis G. Fortuño-Burset in October 2009, although he later passed a law in June 2012 re-designated as nature reserve two-thirds of its lands, after intense lobbying and public pressure.
 Later, in 2013, Governor Alejandro García-Padilla signed a law declaring all lands within the NEC a nature reserve.
 The area comprises 2,969.64 acres (1201.77 hectares), which include such diverse habitats as forests, wetlands, beaches, coral communities, and a sporadically bioluminescent lagoon.
 The Corridor is also home to 866 species of flora and fauna, of which 54 are considered critical elements, meaning rare, threatened, endangered and endemic species classified by the Puerto Rico Department of Natural and Environmental Resources (DNER), some even designated as critically endangered by the International Union for Conservation of Nature and Natural Resources (IUCN).
 These include, among others, federally endangered species such as the plain pigeon, the snowy plover, the Puerto Rican boa, the hawksbill sea turtle and the West Indian manatee.
 The beaches along the NEC, which are 8.74 kilometers (5.43 miles) long are important nesting grounds for the leatherback sea turtle ("Dermochelys coriacea"), which starts its nesting season around April each year.
Denezhkin Kamen Nature Reserve (Russian: Денежкин камень заповедник ) (also Denezhkin Kamen) is a Russian 'zapovednik' (strict nature reserve), centered on Denezhkin Stone Mountain, on the eastern slope of the Central Ural Mountains.
 The mountain is one of the highest peaks in the Urals (altitude of 1492 m ); and most of the reserve's terrain is West Siberian taiga and some tundra.
 Denezhkin Kamen is the only nature reserve in the Ural east-slope watershed, and protects relatively pristine forest.
 There are old-growth stands of trees, no settlements, and no logging roads on the site.
 The reserve is situated about 400 km north of Yekaterinburg, in the Severouralsk city district in the north of Sverdlovsk Oblast.
The Baikal Nature Reserve ( ; Russian: Байка́льский запове́дник , "Baikalski Zapovednik") is a nature reserve on the southeast shore of Lake Baikal, in southern Buryatia, Russia.
 Also called Baikal Zapovednik, it was established in 1969 for preserving the nature along the lake and the neighboring central part of the Chamar-Daban Range.
 The area of this nature reserve is 165,700 ha .
 It hosts dark pine taiga (silver fir, cedar, spruce), thin forests, Siberian Dwarf Pine and rhododendron underbrush, subalpine meadows, and alpine tundras.
 The Baikal Nature Reserve is home to 812 kinds of plants, 49 types of mammals, 272 birds, 3 reptiles, 3 amphibians, and 7 types of fish.
 The reserve is also home to East Siberian brown bear, Baikal lynx, wolverine, otter, osprey, and golden eagle.
 The Baikal Nature Reserve is part of the World Network of Biosphere Reserves (also see "List of biosphere reserves in the Russian Federation").
 The reserve is also a part of the Lake Baikal World Heritage Site.
 The Kabansky Nature Zakaznik, across , was transferred under the jurisdiction of the Baikal Nature Reserve in 1985.
Bigelow Mountain Preserve is a 36000 acre state-owned nature preserve in the western part of the U.S. state of Maine.
 Located in Stratton, Maine, the preserve was created in 1976 in order to stop a proposed development of a ski resort in the area.
 It is home to Mount Bigelow, one of Maine's highest mountains at an elevation of 4145 ft , and Flagstaff Lake.
Ilmen Nature Reserve (Russian: Ильменский заповедник ) (also Ilmensky) is a Russian 'zapovednik' (strict nature reserve) that was created by decree of Vladimir Lenin, in 1920 as a mineralogical nature reserve.
 It is the site of deposits of many rare-earth minerals - 16 minerals were first discovered here, including Ilmenite (named for the site), Monazite, Cancrinite, and Samarskite-(Y).
 There have been over 400 mines in the area over the years.
 The Reserve's geological museum is one of the largest in Russia.
 The forest cover is pine and larch forest on low hills of the Ilmensky Mountains and foothill ridges on east side of the south Ural Mountains.
 The reserve is situated just north and east of the city of Miass, in the Chebarkulsky District of Chelyabinsk Oblast.
 It is also 20 kkm east of Taganay National Park and 75 km west of Chelyabinsk.