HOME TheInfoList.com
Providing Lists of Related Topics to Help You Find Great Stuff
[::MainTopicLength::#1500] [::ListTopicLength::#1000] [::ListLength::#15] [::ListAdRepeat::#3]

picture info

Mount Mazama
MOUNT MAZAMA is a volcano in the Oregon
Oregon
segment of the Cascade Volcanic Arc and the Cascade Range located in the United States
United States
. The volcano 's collapsed caldera holds Crater Lake , and the entire mountain is located within Crater Lake National Park . Its caldera was created by an eruption 42 times greater than the one of Mount St. Helens in 1980. Mazama's summit was destroyed by a volcanic eruption that occurred around 5677 BC, ± 150 years. The eruption reduced Mazama's approximate 12,000-foot (3,700 m) height by about 1 mile (1,600 m). Much of the volcano fell into the volcano's partially emptied neck and magma chamber . At 8,159 feet (2,487 m), Hillman Peak is now the highest point on the rim
[...More...]

"Mount Mazama" on:
Wikipedia
Google
Yahoo

picture info

Crater Lake
A CRATER LAKE is a lake that forms in a volcanic crater or caldera , such as a maar ; less commonly and with lower association to the term a lake may form in an impact crater caused by a meteorite, or in the crater left by an artificial explosion caused by humans. Sometimes lakes which form inside calderas are called CALDERA LAKES, but often this distinction is not made. Crater lakes covering active (fumarolic ) volcanic vents are sometimes known as VOLCANIC LAKES, and the water within them is often acidic , saturated with volcanic gases , and cloudy with a strong greenish color. For example, the crater lake of Kawah Ijen in Indonesia
Indonesia
has a pH of under 0.5. Lakes located in dormant or extinct volcanoes tend to have fresh water, and the water clarity in such lakes can be exceptional due to the lack of inflowing streams and sediment
[...More...]

"Crater Lake" on:
Wikipedia
Google
Yahoo

Summit
A SUMMIT is a point on a surface that is higher in elevation than all points immediately adjacent to it. Mathematically , a summit is a local maximum in elevation. The topographic terms "acme", "apex", "peak" , and "zenith " are synonymous . CONTENTS* 1 Definition * 1.1 Western United States * 2 See also * 3 References * 4 External links DEFINITIONThe term "summit" is generally used only for a mountain peak with some significant amount of topographic prominence (height above the lowest point en route to the nearest higher peak) or topographic isolation (distance from the nearest point of higher elevation); for example, a boulder next to the main summit of a mountain is not considered a summit. Summits near a higher peak, with some prominence or isolation, but not reaching a certain cutoff value for the quantities, are often considered _subsummits_ (or _subpeaks_) of the higher peak, and are considered as part of the same mountain
[...More...]

"Summit" on:
Wikipedia
Google
Yahoo

List Of Mountain Lists
There are many notable MOUNTAIN LISTS around the world. Typically, a list of mountains becomes notable by first being listed or defined by an author or group (e.g. Sir Hugh Munro defining the Munros in Scotland ). This list then becomes a popular target for peak bagging , where a number of people attempt to climb all of the peaks in the list. Alternatively, a list of mountains may become notable in the mountaineering community as a challenge. An example of such a challenge list is the Seven Summits defined by Richard Bass . Examples of notable lists of mountains are shown below
[...More...]

"List Of Mountain Lists" on:
Wikipedia
Google
Yahoo

picture info

List Of Mountains Of Oregon
The mountains in the U.S. state
U.S

[...More...]

"List Of Mountains Of Oregon" on:
Wikipedia
Google
Yahoo

picture info

Geographic Coordinate System
A GEOGRAPHIC COORDINATE SYSTEM is a coordinate system used in geography that enables every location on Earth to be specified by a set of numbers, letters or symbols. The coordinates are often chosen such that one of the numbers represents a vertical position , and two or three of the numbers represent a horizontal position . A common choice of coordinates is latitude , longitude and elevation . To specify a location on a two-dimensional map requires a map projection
[...More...]

"Geographic Coordinate System" on:
Wikipedia
Google
Yahoo

picture info

Klamath County, Oregon
KLAMATH COUNTY (/ˈklæməθ/ KLAM-əth ) is a county in the U.S. state of Oregon
Oregon
. As of the 2010 census , the population was 66,380. The county seat is Klamath Falls
Klamath Falls
. The county was named for the Klamath , the tribe of Native Americans
Americans
living in the area at the time the first European explorers entered the region. Klamath County comprises the Klamath Falls, OR Micropolitan Statistical Area
[...More...]

"Klamath County, Oregon" on:
Wikipedia
Google
Yahoo

picture info

United States
Coordinates : 40°N 100°W / 40°N 100°W / 40; -100 United States
United States
of America _ Flag Great Seal MOTTO: " In God We Trust " Other traditional mottos _ * " E pluribus unum " (
[...More...]

"United States" on:
Wikipedia
Google
Yahoo

Mountain Range
A MOUNTAIN RANGE also called MOUNTAINS or MOUNTAIN BARRIER/BELT/SYSTEM, is a geographic area containing numerous geologically related mountains . A mountain system or system of mountain ranges, sometimes is used to combine several geological features that are geographically (regionally) related. On Earth, most significant mountain ranges are the result of plate tectonics , though mountain ranges are formed by a range of processes, are found on many planetary mass objects in the Solar System and are likely a feature of most terrestrial planets . Mountain ranges are usually segmented by highlands or mountain passes and valleys . Individual mountains within the same mountain range do not necessarily have the same geologic structure or petrology . They may be a mix of different orogenic expressions and terranes , for example thrust sheets , uplifted blocks , fold mountains, and volcanic landforms resulting in a variety of rock types
[...More...]

"Mountain Range" on:
Wikipedia
Google
Yahoo

picture info

Cascade Range
The CASCADE RANGE or CASCADES is a major mountain range of western North America
North America
, extending from southern British Columbia
British Columbia
through Washington and Oregon
Oregon
to Northern California
California
. It includes both non-volcanic mountains, such as the North Cascades, and the notable volcanoes known as the HIGH CASCADES. The small part of the range in British Columbia
British Columbia
is referred to as the CANADIAN CASCADES or, locally, as the CASCADE MOUNTAINS. The latter term is also sometimes used by Washington residents to refer to the Washington section of the Cascades in addition to NORTH CASCADES, the more usual U.S. term, as in North CascadesNational Park . The highest peak in the range is Mount Rainier
Mount Rainier
in Washington at 14,411 feet (4,392 m)
[...More...]

"Cascade Range" on:
Wikipedia
Google
Yahoo

picture info

Topographic Map
In modern mapping, a TOPOGRAPHIC MAP is a type of map characterized by large-scale detail and quantitative representation of relief , usually using contour lines , but historically using a variety of methods . Traditional definitions require a topographic map to show both natural and man-made features. A topographic map is typically published as a map series , made up of two or more map sheets that combine to form the whole map. A contour line is a line connecting places of equal elevation. Natural Resources Canada provides this description of topographic maps: These maps depict in detail ground relief (landforms and terrain), drainage (lakes and rivers), forest cover, administrative areas, populated areas, transportation routes and facilities (including roads and railways), and other man-made features
[...More...]

"Topographic Map" on:
Wikipedia
Google
Yahoo

picture info

United States Geological Survey
The UNITED STATES GEOLOGICAL SURVEY (USGS, formerly simply GEOLOGICAL SURVEY) is a scientific agency of the United States
United States
government . The scientists of the USGS study the landscape of the United States
United States
, its natural resources , and the natural hazards that threaten it. The organization has four major science disciplines, concerning biology , geography , geology , and hydrology . The USGS is a fact-finding research organization with no regulatory responsibility. The USGS is a bureau of the United States
United States
Department of the Interior ; it is that department's sole scientific agency. The USGS employs approximately 8,670 people and is headquartered in Reston , Virginia . The USGS also has major offices near Lakewood , Colorado
Colorado
, at the Denver Federal Center , and Menlo Park , California
California

[...More...]

"United States Geological Survey" on:
Wikipedia
Google
Yahoo

List Of Mountain Types
Mountains and hills can be characterized in several ways. Some mountains are volcanoes and can be characterized by the type of lava and eruptive history. Other mountains are shaped by glacial processes and can be characterized by their shape. Finally, many mountains can be characterized by the type of rock that make up their composition
[...More...]

"List Of Mountain Types" on:
Wikipedia
Google
Yahoo

picture info

Caldera
A CALDERA is a large cauldron -like depression that forms following the evacuation of a magma chamber /reservoir. When large volumes of magma are erupted over a short time period, structural support for the crust above the magma chamber is lost. The ground surface then collapses downward into the partially emptied magma chamber, leaving a massive depression at the surface (from one to dozens of kilometers in diameter). Although sometimes described as a crater , the feature is actually a type of sinkhole , as it is formed through subsidence and collapse rather than an explosion or impact. Only seven known caldera-forming collapses have occurred since the start of the 20th century, most recently at Bárðarbunga volcano in Iceland
[...More...]

"Caldera" on:
Wikipedia
Google
Yahoo

Volcanic Arc
A VOLCANIC ARC is a chain of volcanoes formed above a subducting plate , positioned in an arc shape as seen from above. Offshore volcanoes form islands, resulting in a volcanic island arc . Generally, volcanic arcs result from the subduction of an oceanic tectonic plate under another tectonic plate, and often parallel an oceanic trench . The oceanic plate is saturated with water, and volatiles such as water drastically lower the melting point of the mantle . As the oceanic plate is subducted, it is subjected to greater and greater pressures with increasing depth. This pressure squeezes water out of the plate and introduces it to the mantle. Here the mantle melts and forms magma at depth under the overriding plate. The magma ascends to form an arc of volcanoes parallel to the subduction zone
[...More...]

"Volcanic Arc" on:
Wikipedia
Google
Yahoo

Cascade Volcanoes
The CASCADE VOLCANOES (also known as the CASCADE VOLCANIC ARC or the CASCADE ARC) are a number of volcanoes in a volcanic arc in western North America , extending from southwestern British Columbia through Washington and Oregon to Northern California , a distance of well over 700 miles (1,100 km). The arc has formed due to subduction along the Cascadia subduction zone . Although taking its name from the Cascade Range , this term is a geologic grouping rather than a geographic one, and the Cascade Volcanoes extend north into the Coast Mountains , past the Fraser River which is the northward limit of the Cascade Range proper. Some of the major cities along the length of the arc include Portland , Seattle , and Vancouver , and the population in the region exceeds 10,000,000 people
[...More...]

"Cascade Volcanoes" on:
Wikipedia
Google
Yahoo
.