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Appalachian Mountains

(Encyclopedia)Appalachian Mountains ăpəlāˈchən, –chēən, –lăchˈ– [key], mountain system of E North America, extending in a broad belt c.1,600 mi (2,570 km) SW from the Gaspé Peninsula in Quebec prov....

Mourne Mountains

(Encyclopedia)Mourne Mountains môrn [key], in Down, Newry, and Mourne dists., SE Northern Ireland. Slieve Donard (2,796 ft/852 m) is the highest peak in Northern Ireland. The district is barren and sparsely popula...

Monadhliath Mountains

(Encyclopedia)Monadhliath Mountains mōˈnəlēˈə [key], Highland, N central Scotland, between the Spey River and Loch Ness. Carn Ban (3,087 ft/941 m) is the highest point. ...

Atlas Mountains

(Encyclopedia)Atlas Mountains, system of ranges and plateaus in NW Africa, extending c.1,500 mi (2,410 km) from SW Morocco, through N Algeria, to N Tunisia; Jebel Toubkal (13,671 ft/4,167 m), in SW Morocco, is the ...

Olympic Mountains

(Encyclopedia)Olympic Mountains, highest part of the Coast Ranges, on the Olympic Peninsula, NW Wash. Mt. Olympus (7,965 ft/2,427 m) is the highest point in the mountains, which are composed mainly of sedimentary r...

Ouachita Mountains

(Encyclopedia)Ouachita Mountains, range of east-west ridges between the Arkansas and Red rivers, extending c.200 mi (320 km) from central Ark. into SE Okla. Magazine Mt. (c.2,800 ft/850 m high) is the tallest peak....

Ozark Mountains

(Encyclopedia)Ozark Mountains, Mo.: see Ozarks, the. ...

Ore Mountains

(Encyclopedia)Ore Mountains: see Erzgebirge.

Arbuckle Mountains

(Encyclopedia)Arbuckle Mountains ärˈbŭkəl [key], range of low, rolling hills, rising c.700 ft (210 m) above the prairie, S Okla.; remnant of mountains formed in the Precambrian. Interesting geological formation...

Laurentian Mountains

(Encyclopedia)Laurentian Mountains lôrˈəntīdzˌ, lärˈ–, –tēdzˌ [key], S Que., Canada, N of the St. Lawrence and Ottawa rivers, rising to 3,150 ft (960 m) in Mt. Tremblant. The Gatineau, L'Assomption, Li...