The Endicott Mountains are a range of mountains, part of the

Brooks Range The Brooks Range ( Gwich'in: ''Gwazhał'') is a mountain range in far northern North America stretching some from west to east across northern Alaska into Canada's Yukon Territory. Reaching a peak elevation of on Mount Isto, the range is belie ...

in northern

Alaska Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S. ...

. They are located in the middle of the Brooks range and run some east–west. To the east are the Philip Smith Mountains and to the west are the Schwatka Mountains. The Endicott Mountains are separated from the Philip Smith Mountains by the Middle Fork of the

Koyukuk River The Koyukuk River (; ''Ooghekuhno' '' in Koyukon, ''Kuuyukaq'' or ''Tagraġvik'' in Iñupiaq) is a tributary of the Yukon River, in the U.S. state of Alaska. It is the last major tributary entering the Yukon before the larger river empties int ...

, the

Dalton Highway The James W. Dalton Highway, usually referred to as the Dalton Highway (and signed as Alaska Route 11), is a road in Alaska. It begins at the Elliott Highway, north of Fairbanks, and ends at Deadhorse (an unincorporated community within the ...

, and Atigun Pass. The Endicott Mountains are separated from the Schwatka Mountains by

Walker Lake Several lakes are known as Walker Lake: Canada *Lake Walker in Quebec, Canada, the largest (by depth) lake in the province. United States

*Walker Lake (Haines, Alaska) *Walker Lake (Northwest Arctic, Alaska) *Walker Lake (Prince of Wales-Outer ...

, the upper reaches of the West Fork of the

Kobuk River The Kobuk River (''Kuuvak'' in Iñupiaq) (also Kooak, Kowak, Kubuk, Kuvuk, or Putnam) is a river located in the Arctic region of northwestern Alaska in the United States. It is approximately long. Draining a basin with an area of ,Brabets, T.P. ...

(Kaluluktok Creek), Akabluak Pass, and the

Noatak River The Noatak River ( ik, Nuataam Kuuŋa) is a river in the northwestern part of the U.S. state of Alaska. Description The Noatak River's headwaters are on the north flank of Mount Igikpak in the Schwatka Mountains of the Brooks Range in the Gate ...

. The Endicott Mountains are separated from the mountains north of the Schwatka by Lucky Six Creek, Gull Pass, Gull Creek, a portion of the

Alatna River The Alatna River is a federally designated wild and scenic river partially contained within the boundaries of Gates of the Arctic National Park, Alaska. It is called one of the most beautiful rivers in the United States. Geography The Alatna R ...

and the Killik River. From south to north the Endicott Mountains present long, broad glaciated valleys with rounded hills between rising in the center of the range to steep tors and aretes. The northern slopes of the Endicotts are steeper and more heavily incised, before they give way to the Arctic Coastal Plain.

Peaks

Peaks in the Endicott Mountains include the Arrigetch Peaks, and highest to lowest: as well as a number of unnamed peaks over 7000 ft.

Geology

Above the

crystalline A crystal or crystalline solid is a solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions. In addition, macros ...

basement PreCambrian and

Paleozoic The Paleozoic (or Palaeozoic) Era is the earliest of three geologic eras of the Phanerozoic Eon. The name ''Paleozoic'' ( ;) was coined by the British geologist Adam Sedgwick in 1838 by combining the Greek words ''palaiós'' (, "old") and ' ...

sediments that have undergone partial metamorphosis . Above these are middle Cambrian sediments and the well documented Kanayuk Conglomerate.Nilsen, T. H.; Moore, T. E.; Dutro, J. T., Jr.; Brosgé, W. P. and Orchard, D. M. (1980) "Sedimentology and Stratigraphy of the Kanayuk Conglomerate and Associated Units, Central and Eastern Brooks Range, Alaska: Report of the 1978 Field Season" United States Geological Survey Open file Report OF 80–888Harris, Ann G. ''et al.'' (2004) ''Geology of National Parks'' (6th edition) Kendall/Hunt Publishing Company, Dubuque, Iowa
page 380
The Kanayuk Conglomerate is a fluvial deposit, made by a river in its flood plain, and can be up to thick. The Kanayuk Conglomerate began to be deposited in the Devonian and continued through into the Mississippian (early Carboniferous). It is believed to have formed a huge delta almost long and wide.

Notes

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External links

"Endicott Mountains"
from Peakbagger.com Brooks Range Gates of the Arctic National Park and Preserve Landforms of Yukon–Koyukuk Census Area, Alaska Mountains of Northwest Arctic Borough, Alaska Mountains of Unorganized Borough, Alaska

Peaks

Geology

Notes

Further reading

External links