Gates of the Mountains Wilderness
IUCN Category Ib (Wilderness Area)
Location	Montana, USA
Nearest city	Helena, MT
Coordinates	46°53′″N 111°58′″W / <span class="geo-dec geo" title="Maps, aerial photos, and other data for Expression error: Unexpected / operator Expression error: Unexpected / operator">Expression error: Unexpected / operator, Expression error: Unexpected / operator
Area	28,562 acres (115 km²)
Established	1964
Governing body	U.S. Forest Service

The Gates of the Mountains Wilderness is located in the U.S. state of Montana. A wilderness area is a region where the land is in a natural state where impacts from human activities are minimal—that is as a Wilderness. Montana ( is a state in the Western United States. One-third of the state in the western part contains numerous mountain ranges (approximately 77 named of the northern The United States of America —commonly referred to as the Helena (ˈhɛlɨnə is the Capital city of the US state of Montana and the County seat of Lewis and Clark County Year 1964 ( MCMLXIV) was a Leap year starting on Wednesday (link will display full calendar of the 1964 Gregorian calendar. A US state is any one of the fifty subnational entities of the United States of America that share Sovereignty with the federal government Montana ( is a state in the Western United States. One-third of the state in the western part contains numerous mountain ranges (approximately 77 named of the northern Created by an act of Congress in 1964, the wilderness is managed by Helena National Forest. The United States Congress is the bicameral Legislature of the federal government of the United States of America, consisting of two houses Year 1964 ( MCMLXIV) was a Leap year starting on Wednesday (link will display full calendar of the 1964 Gregorian calendar. Helena National Forest is located in west-central Montana, in the United States.

Gates of the Mountains Wilderness (then known as the Gates of the Mountains Wild Area) was the site of the 1949 Mann Gulch fire, which claimed the lives of 13 firefighters and which was the subject of Norman Maclean's book Young Men and Fire. The Mann Gulch fire of 1949 occurred when a Wildfire in the Helena National Forest, Montana, United States, spread out of control and ultimately Norman Fitzroy Maclean ( 23 December 1902 in Clarinda, Iowa &mdash 2 August 1990 in Chicago, Illinois Young Men and Fire is a non-fiction book written by Norman Maclean and edited by his son John Norman Maclean.

U.S. Wilderness Areas do not allow motorized or mechanized vehicles, including bicycles. The US National Wilderness Preservation System protects federally managed land areas that are of a pristine condition A motor Vehicle is a Machine which incorporates a motor (sometimes known as an Engine) and which is used for Transportation Mechanization or mechanisation ( BE) is providing human operators with machinery to assist them with the physical requirements of work The bicycle, cycle, or bike is a pedal-driven, human-powered vehicle with two wheels attached to a frame, one behind Although camping and fishing are allowed with proper permit, no roads or buildings are constructed and there is also no logging or mining, in compliance with the 1964 Wilderness Act. Definition Camping describes a range of activities Survivalist campers set off with little more than their boots whereas Recreational vehicle travelers arrive equipped For the computer security term see Phishing. Fishing is the activity of catching Fish. Forestry is the Art and Science of managing forests tree Plantations and related Natural resources. Mining is the extraction of valuable Minerals or other geological materials from the earth usually (but not always from an Ore body The Wilderness Act of 1964 ( was written by Howard Zahniser of The Wilderness Society. Wilderness areas within National Forests and Bureau of Land Management areas also allow hunting in season. "National forest" redirects here for the National Forest in England see National Forest England; for those in Brazil see List of Brazilian National Forests The Bureau of Land Management (BLM is an agency within the United States Department of the Interior which administers America's Public lands totaling approximately Hunting is the practice of pursuing Animals for Food, Recreation, or Trade.

History

Madison Limestone walls of the Gates of the Mountains

The Gates of the Rocky Mountains were named by Lewis and Clark. Madison Limestone is a thick sequence of mostly carbonate rocks of Mississippian age in the Rocky Mountain and Great Plains areas of western Captain Lewis wrote on July 19, 1805,

Geology

The prominent gray cliffs along the Missouri River in the Gates of the Mountains are formed by Madison Limestone. Madison Limestone is a thick sequence of mostly carbonate rocks of Mississippian age in the Rocky Mountain and Great Plains areas of western At the southern entrance to the canyon the trace of the Eldorado thrust fault juxtaposes Proterozoic Belt Supergroup Greyson Shale over much younger Madison Limestone; this faulting was part of the Sevier orogeny. A thrust fault is a type of fault, or break in the Earth's crust with resulting movement of each side against the other in which a lower stratigraphic position is pushed up The Proterozoic (ˌproʊtərəˈzoʊɪk is a geological eon representing a period before the first abundant complex life on Earth. The Sevier orogeny was a mountain-building event that affected western North America from Canada to the north to Mexico to the south Within the canyon, caves and folded layers of Madison Limestone are found. Near the north end of the canyon, at Mann Gulch and further north, alternating ridges and valleys reflect the alternating resistance of younger rock layers overlying the Madison Limestone. Mann Gulch is a Gulch in the Gates of the Mountains Wilderness of the upper Missouri River, north-northeast of Helena Montana, in southeastern The entire canyon is an example of a superposed or antecedent stream, in which the river pre-dates the uplift of the rocks and kept pace with erosion as uplift occurred. An entrenched river is a river that is confined to a Canyon or Gorge, usually with a relatively narrow width and little or no Flood plain, and often ^[1]

References

1. ^ River Log and Road Log: Thrust Faulting near Gates of the Mountains, Lombard, Lewis & Clark Canyon, Montana Geological Society 1994 Guidebook, James L. Cannon, Gary G. Thompson, and John R. Warne, editors

External links

• Gates of the Mountains Wilderness. The National Wilderness Preservation System. Wilderness. net. Retrieved on 2006-08-16. Year 2006 ( MMVI) was a Common year starting on Sunday of the Gregorian calendar. Events 1384 - The Hongwu Emperor of Ming China, Emperor Dong hears a case of a couple who tore paper money bills while fighting
• USGS Beartooth Mountain (MT) Topo Map Quad. Topozone. Retrieved on 2006-08-16. Year 2006 ( MMVI) was a Common year starting on Sunday of the Gregorian calendar. Events 1384 - The Hongwu Emperor of Ming China, Emperor Dong hears a case of a couple who tore paper money bills while fighting
• Wilderness Legislation: The Wilderness Act of 1964. The National Wilderness Preservation System. Wilderness. net. Retrieved on 2006-08-16. Year 2006 ( MMVI) was a Common year starting on Sunday of the Gregorian calendar. Events 1384 - The Hongwu Emperor of Ming China, Emperor Dong hears a case of a couple who tore paper money bills while fighting

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