Mount Hood reflected in Trillium Lake
|Elevation||11,249 feet (3,429 m)|
|Prominence||7,706 feet (2,349 m)|
|Topo map||USGS Mount Hood South|
|Volcanic arc/belt||Cascade Volcanic Arc|
|Age of rock||less than 500,000 years|
|First ascent||1857-07-11 by Henry Pittock, W. A geographic coordinate system enables every location on the Earth to be specified in three coordinates using mainly a spherical coordinate system. Trillium Lake is a Lake situated south-southwest of Mount Hood in the U In topography a summit is a point on a surface which is higher in Elevation than all points immediately adjacent to Oregon ( is a state in the Pacific Northwest region of the United States. A mountain range is a chain of Mountains bordered by highlands or separated from other mountains by passes or valleys A geographic coordinate system enables every location on the Earth to be specified in three coordinates using mainly a spherical coordinate system. A topographic map is a type of Map characterized by large-scale detail and quantitative representation of relief, usually using Contour lines in modern The United States Geological Survey ( USGS) is a scientific agency of the United States government. Mountains can be characterized in several ways Some mountains are Volcanoes and can be characterized by the type of lava and eruptive history A stratovolcano, also called a composite volcano is a tall conical Volcano composed of many layers of hardened Lava, Tephra, and Volcanic A volcanic arc is a chain of volcanic islands or Mountains formed by Plate tectonics as an oceanic Tectonic plate subducts under A volcanic belt is a large volcanically active region Other terms are used for smaller areas of activity such as volcanic fields Volcanic belts are found above zones 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 The geologic time scale is a chronologic schema (or idealized Model) relating Stratigraphy to time that is used by Geologists and other Plate tectonics and hotspots Divergent plate boundaries At the In Climbing, a first ascent (FA is the first modern recorded climb to reach the top of a Mountain, or the first to follow a particular Climbing route Click here for Indian Rebellion of 1857 Year 1857 ( MDCCCLVII) was a Common year starting on Thursday (link will display the Events 911 - Signing of the Treaty of Saint-Clair-sur-Epte between Charles the Simple and Rollo of Normandy. Henry Lewis Pittock ( March 1, 1836 - January 28, 1919) was an Oregon ( U Lymen Chittenden, Wilbur Cornell, and the Rev. T. A. Wood|
|Easiest route||Rock and glacier climb|
Mount Hood (called Wy'east by the Multnomah tribe), is a stratovolcano in the Cascade Volcanic Arc in northern Oregon, in the Pacific Northwest region of the United States. A climbing route is a path by which a climber reaches the top of a Mountain, rock or ice wall The Multnomah were a tribe of Chinookan people who lived in the area of Portland Oregon, more specifically Sauvie Island, in the United States A stratovolcano, also called a composite volcano is a tall conical Volcano composed of many layers of hardened Lava, Tephra, and Volcanic 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 Oregon ( is a state in the Pacific Northwest region of the United States. The Pacific Northwest is a region in the northwest of North America (the term refers to the land not the ocean The United States of America —commonly referred to as the It is located about 50 miles (80 km) east-southeast of the city of Portland, on the border between Clackamas and Hood River counties. Portland is a city located in the Northwestern United States, near the Confluence of the Willamette and Columbia rivers Clackamas County (ˈklækəmɪs is a county located in the US Hood River County is a county located in the US state of Oregon.
Mount Hood's snow-covered peak rises 11,239 feet (3,426 m) and is home to twelve glaciers. "Glacial" and "Glaciation" redirect here For the geological periods see Glacial period.  It is the highest mountain in Oregon and the fourth-highest in the Cascade Range. A mountain is a Landform that extends above the surrounding Terrain in a limited area with a peak Mount Hood is considered the Oregon volcano most likely to erupt, though based on its history, an explosive eruption is unlikely. Still, the odds of an eruption in the next 30 years are estimated at between 3 and 7 percent, so the USGS characterizes it as "potentially active".  The mountain is sometimes informally described as "dormant" ("asleep").
Timberline Lodge is a National Historic Landmark located on the southern flank of Mount Hood just below Palmer Glacier. Timberline Lodge is a mountain lodge on the south side of Mount Hood in Oregon, about 60 miles (96 km east of Portland. A National Historic Landmark (NHL is a Building, site, Structure, Object, or District, that is officially recognized by the The Palmer Glacier is a Glacier located on the upper slopes of Mount Hood in the U 
The mountain has six ski areas: Timberline, Mount Hood Meadows, Ski Bowl, Cooper Spur, Snow Bunny and Summit. A ski area is a developed recreational facility usually on a Mountain or large Hill, containing ski trails and vital supporting services Timberline Lodge ski area is the ski and snowboarding area of Timberline Lodge, a National Historic Landmark in the U Mount Hood Meadows is one of the largest Ski resorts in Oregon, USA, and the largest ski resort near Mount Hood. Mount Hood Skibowl is a recreation area on Mount Hood located near Government Camp, Oregon. The Cooper Spur Ski Area is a Ski area located on the northeast side of Mount Hood, Oregon, United States. Snow Bunny is a small snow play area located in Mount Hood National Forest on the south face of Mount Hood in Oregon, USA, about 65 miles Summit Ski Area is a small ski park located on Mount Hood, alongside the Mount Hood Highway ( U They total over 4,600 acres (7. 2 sq mi/18. 6 km²) of skiable terrain; Timberline offers the only year-round lift-served skiing in North America. 
Mount Hood is part of the Mount Hood National Forest, which has 1. The Mount Hood National Forest is located 20 miles (32 km east of the city of Portland Oregon, and the northern Willamette River valley 067 million acres (1667 sq mi/4318 km²), four designated wilderness areas which total 189,200 acres (295. The Mount Hood Wilderness is a protected Wilderness area inside the Mount Hood National Forest which is located in the U 6 sq mi/766 km²) acres and more than 1,200 miles (1,900 km) of hiking trails. 
The glacially eroded summit area consists of several andesitic or dacitic lava domes; Pleistocene collapses produced avalanches and lahars (rapidly moving mudflows) that traveled across the Columbia River to the north. For the extinct cephalopod genus see Andesites. Andesite (ˈændəsaɪt is an igneous, Volcanic rock, of intermediate Dacite ( deɪsaɪt) is an igneous, volcanic rock with a high iron content In Volcanology, a lava dome or plug dome is a roughly circular Mound -shaped protrusion resulting from the slow eruption of Felsic Lava The Pleistocene ('plaɪstəsin is the epoch from 18 million to 10000 years BP covering the world's recent period A lahar is a type of Mudflow / Landslide composed of Pyroclastic material and Water that flows down from a Volcano, typically The Columbia River (known as The eroded volcano has had at least four major eruptive periods during the past 15,000 years. The last three occurred within the past 1,800 years from vents high on the southwest flank and produced deposits that were distributed primarily to the south and west along the Sandy and Zigzag Rivers. The Sandy River is a tributary of the Columbia River in northwestern Oregon in the United States. The Zigzag River is a small river in Oregon 's Cascade Range that drains southwestern Mount Hood. The last eruptive period took place around 170 to 220 years ago, when dacitic lava domes, pyroclastic flows and mudflows were produced without major explosive eruptions. The prominent Crater Rock just below the summit is believed to be the remnants of a dacite dome from then. Dacite ( deɪsaɪt) is an igneous, volcanic rock with a high iron content This period includes the last major eruption of 1781–82 and a more recent episode ending shortly before the arrival of Lewis and Clark in 1805. The most recent minor eruptive event occurred in August 1907.  The glaciers on the mountain's upper slopes may be a source of potentially dangerous lahars when the mountain next erupts. A lahar is a type of Mudflow / Landslide composed of Pyroclastic material and Water that flows down from a Volcano, typically There are vents near the summit that are known for emitting noxious gases such as carbon dioxide and sulfur dioxide. Carbon dioxide ( Chemical formula:) is a Chemical compound composed of two Oxygen Atoms covalently bonded to a single Prior to the 1980 eruption of Mount St. Helens, the only known fatality related to volcanic activity in the Cascades occurred in 1934 when a climber suffocated in oxygen-poor air while exploring ice caves melted by fumaroles in Coalman Glacier. The 1980 eruption of Mount St Helens, a volcano located in Washington state in the United States was a major volcanic eruption. The Coalman Glacier (also Coleman Glacier) is a Glacier located on the upper slopes of Mount Hood in the U
Since 1950, there have been several earthquake swarms each year at Mount Hood, most notably in July 1980, and June 2002. Earthquake swarms are events where a local area experiences sequences of many Earthquakes striking in a relatively short period of time  Seismic activity is monitored by the USGS Cascades Volcano Observatory located in Vancouver, Washington, which issues daily updates. Seismology (from Greek grc σεισμός seismos, "earthquake" and grc -λογία -logia) is the scientific study of Earthquakes The United States Geological Survey ( USGS) is a scientific agency of the United States government. A volcano observatory is an institution that conducts research and monitoring of a Volcano. Vancouver is a city on the north bank of the Columbia River in the U 
Mount Hood is host to twelve named glaciers or snow fields, the most visited of which is Palmer Glacier, partially within the Timberline Lodge ski area and along the most popular climbing route. Snowfield is also a former name of the UK indie rock band Editors A snow field (also called a snowfield) is an extensive Terrain Timberline Lodge ski area is the ski and snowboarding area of Timberline Lodge, a National Historic Landmark in the U The glaciers are almost exclusively above the 6,000-foot (1,800 m) level, which also is about the level of the average tree line on Mount Hood. The tree line or timberline is the edge of the habitat at which Trees are capable of growing More than 80% of the glacial surface area is above 7,000 feet (2,100 m). 
The glacial surface area totals about 145 million square feet (5. 2 square miles) and contains a volume of about 12. 3 billion cubic feet (0. 084 cubic miles). Eliot Glacier is the largest by volume at 3. 2 billion cubic feet (91,000,000 m³), and has the thickest depth measured by ice radar at 361 feet (110 m). The largest surface area is the Coe-Ladd Glacier system at 23,100,000 square feet (2,150,000 m²).
millions of ft²
billions of ft³
|Palmer||1. The Geographic Names Information System ( GNIS) is a database that contains name and locative information about more than two million physical and cultural features located throughout The Palmer Glacier is a Glacier located on the upper slopes of Mount Hood in the U 4||0. 07||headwaters of the Salmon River|
|Coalman (or "Coleman")||0. The Salmon River is a 339 mile (55 km River in Oregon 's Cascade Range and drains a portion of southwestern Mount Hood. The Coalman Glacier (also Coleman Glacier) is a Glacier located on the upper slopes of Mount Hood in the U 9||0. 04||located between Crater Rock and the summit|
|White River||5. 8||0. 3||feeds the White River|
|Newton Clark||21. The White River is a tributary of the Deschutes River, approximately 50 mi (80 km long in north central Oregon in the United States. 4||1. 4||source of the East Fork Hood River|
|Eliot||18. The Hood River is a tributary of the Columbia River in northwestern Oregon in the United States. 1||3. 2||source of Tilly Jane Creek and Eliot Branch, tributaries of Middle Fork Hood River|
|Langille||4. The Hood River is a tributary of the Columbia River in northwestern Oregon in the United States. 3||0. 3||in Hood River watershed|
|Coe||13. The Hood River is a tributary of the Columbia River in northwestern Oregon in the United States. 4||1. 9||source of Coe Branch, a tributary of Middle Fork Hood River|
|Ladd||9. The Hood River is a tributary of the Columbia River in northwestern Oregon in the United States. 7||0. 9||source of McGee Creek, a tributary of West Fork Hood River|
|Sandy||12. The Hood River is a tributary of the Columbia River in northwestern Oregon in the United States. 8||0. 08||feeds Muddy Fork, a tributary of the Sandy River|
|Reid||8. A tributary is a Stream or River which flows into a mainstem (or parent river The Sandy River is a tributary of the Columbia River in northwestern Oregon in the United States. 1||0. 6||feeds the Sandy River|
|Zigzag||8. The Sandy River is a tributary of the Columbia River in northwestern Oregon in the United States. The Zigzag Glacier is an Alpine glacier located on the upper southwest slopes of Mount Hood in the U 3||0. 6||feeds the Zigzag River|
|(total)||145. The Zigzag River is a small river in Oregon 's Cascade Range that drains southwestern Mount Hood. 1||12. 3|
The mountain was given its present name on October 29, 1792 by Lt. William Broughton, a member of Captain George Vancouver's discovery expedition. Events 437 - Valentinian III, Western Roman Emperor, marries Licinia Eudoxia, daughter of his cousin Theodosius II Year 1792 ( MDCCXCII) was a Leap year starting on Sunday (link will display the full calendar of the Gregorian calendar (or a Leap year William Robert Broughton was a British naval officer in the late 18th century Captain George Vancouver Lt. Broughton observed its peak while at Belle Vue Point of what is now called Sauvie Island during his travels up the Columbia River, writing "A very high, snowy mountain now appeared rising beautifully conspicuous in the midst of an extensive tract of low or moderately elevated land (location of today's Vancouver, Washington) lying S 67 E. Sauvie Island, in the US state of Oregon, is the largest Island along the Columbia River, at 26000 acres (105 km² Vancouver is a city on the north bank of the Columbia River in the U , and seemed to announce a termination to the river. " Lt. Broughton named the mountain after a British admiral, Samuel Hood. The Kingdom of Great Britain, also known as the United Kingdom of Great Britain, was a State in northwest Europe, in existence from 1707 to 1800 Admiral is the rank, or part of the name of the ranks of the highest Naval officers For other related uses see Admiral Hood Samuel Hood 1st Viscount Hood ( 12 December 1724 &ndash 27 January
The Multnomah name for Mount Hood is Wy'east. The Multnomah were a tribe of Chinookan people who lived in the area of Portland Oregon, more specifically Sauvie Island, in the United States Legend has it that the name Wy'east comes from a chief of the Multnomah tribe, the tribe after which Multnomah County was named. Multnomah County (məltˈnoʊmə is one of 36 counties in the U The chief competed for the attention of a woman who was also loved by the chief of the Klickitat tribe. The anger that the competition generated led to their transformations into volcanoes, with the Klickitat chief becoming nearby Mount Adams and the target of their affection becoming Mount St. Helens. Mount Adams is a potentially active Stratovolcano in the Cascade Range and the second-highest Mountain in the state of Washington Mount St Helens is an active Stratovolcano located in Skamania County, Washington, in the Pacific Northwest region of the United States Their battle was said to have destroyed the Bridge of the Gods and thus created the Great Cascades of the Columbia River. The original Bridge of the Gods was created during the eighteenth century by the Bonneville Slide, a major Landslide which Dammed the Columbia River The Columbia River (known as 
Its status as Oregon's highest point, a prominent landmark visible up to a hundred miles away, convenient access, and relative lack of technical climbing challenges lure many to climb Mount Hood. About 10,000 people attempt to climb each year. 
The most popular route, dubbed the south route, begins at Timberline Lodge and proceeds up Palmer glacier to Crater Rock, the large prominence at the head of the glacier. Climbers then proceed around Crater Rock and cross Coalman glacier on the Hogsback, a ridge spanning from Crater Rock to the approach to the summit. The Hogsback terminates at a bergschrund where Coalman glacier separates from the summit rock headwall, and then to the Pearly Gates, a gap in the summit rock formation. A bergschrund is a Crevasse that forms where the moving glacier ice separates from the stagnant ice above In Physical geography, the headwall of a glacial cirque is its highest cliff Once through the Pearly Gates, climbers proceed to the right onto the summit plateau and then to the summit proper. 
As of Spring 2007, reported changes in the formation of the popular South Route has increased the difficulty of the climb. Reportedly, the Hogsback has shifted west. Also, a technical "ice chute" has formed in the Pearly Gates. Some climbers are opting to climb the "left chute" variation of the Pearly Gates route, but this has also increased the difficulty of the climb, as it is also a technical ice wall 30 feet (9. 1 m) or greater in height, and with fall exposure of 500+ feet.
Technical ice axes, fall protection, and experience are now recommended in order to attempt the "left chute" variation or Pearly Gates ice chute. The Forest Service is recommending several other route options due to these change in conditions ("Old Chute," West Crater Rim, etc). 
More than 130 people have died in climbing-related accidents since records have been kept on Mount Hood, the first in 1896. See also Mount Hood Mount Hood climbing accidents are Mountain climbing or Hiking -related incidents on Oregon's  Incidents in April 1986 and December 2006 attracted intense national and international media interest. Though avalanches are popularly considered a hazard, most climbing deaths are the result of falls and hypothermia. Hypothermia is a condition in which an organism's temperature drops below that required for normal Metabolism and bodily functions Despite a quadrupling of forest visitors since 1990, fewer than 50 people require rescue per year.  Only 3. 4 percent of 2006's search and rescue missions were for mountain climbers. 
There have been two US Navy ammunition ships named for the mountain. USS Mount Hood (AE-11) was commissioned in July 1944 and was destroyed in November 1944 while at anchor in Manus Naval Base, Admiralty Islands. History Marco Polo was a cargo ship built under Maritime Commission contract (MC hull 1356 by the North Carolina Shipbuilding Co For the island in Alaska see Admiralty Island. For other uses see The Admiralty Islands. Her explosive cargo ignited resulting in 45 confirmed dead, 327 missing and 371 injured.  A second ammunition ship, AE-29, was commissioned in May 1971 and decommissioned in August 1999.