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Lizard Head
Lizard Head is a mountain summit in the San Miguel Mountains range of the Rocky Mountains of North America. The thirteener is located in the Lizard Head Wilderness, west by south ( bearing 258°) of the Town of Ophir, Colorado, United States, on the drainage divide separating San Juan National Forest and Dolores County from Uncompahgre National Forest and San Miguel County. Mountain Lizard Head lies just southeast of a group of three Colorado fourteeners, Mount Wilson, Wilson Peak, and El Diente Peak. Lizard Head is only the 556th highest peak in Colorado by most standard definitions, but its towering spire-like form makes it one of the most spectacular. Lizard Head lies northwest of Colorado State Highway 145 at Lizard Head Pass. Lizards Head Trail climbs west from Trout Lake along Black Face Mountain ridge and past the south face of Lizard Head toward Wilson Peak. The peak was used in a logo by the Rio Grande Southern Railroad. Geology The rock spire of Lizar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Level Datum Of 1929
The National Geodetic Vertical Datum of 1929 is the official name since 1973 of the vertical datum established for vertical control surveying in the United States, United States of America by the General Adjustment of 1929. Originally known as Sea Level Datum of 1929, NGVD 29 was determined and published by the National Geodetic Survey and used to measure the elevation of a point above and depression (geology), depression below mean sea level (MSL). NGVD29 was superseded by the North American Vertical Datum of 1988 (NAVD 88), based upon reference to a single benchmark (referenced to the new International Great Lakes Datum of 1985 local mean sea level height value), although many cities and U.S. Army Corps of Engineers "legacy" projects with established data continued to use the older datum. Methodology Mean sea level was measured at 26 tide gauges: 21 in the United States and 5 in Canada. The datum was defined by the observed heights of mean sea level at the 26 tide gauges and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Absolute Bearing
In navigation, bearing or azimuth is the horizontal angle between the direction of an object and north or another object. The angle value can be specified in various angular units, such as degrees, mils, or grad. More specifically: * Absolute bearing refers to the angle between the magnetic north (''magnetic bearing'') or true north (''true bearing'') and an object. For example, an object to due east would have an absolute bearing of 90 degrees. Thus, it is the same as azimuth.U.S. Army, ''Advanced Map and Aerial Photograph Reading'', Headquarters, War Department, Washington, D.C. (17 September 1941), pp. 24-2/ref> * #Relative, Relative bearing refers to the angle between the craft's forward direction (heading) and the location of another object. For example, an object relative bearing of 0 degrees would be immediately in front; an object relative bearing 180 degrees would be behind. Bearings can be measured in mils, points, or degrees. Thus, it is the same as an ''azimut ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanic Plug
A volcanic plug, also called a volcanic neck or lava neck, is a volcanic object created when magma hardens within a vent on an active volcano. When present, a plug can cause an extreme build-up of high gas pressure if rising volatile-charged magma is trapped beneath it, and this can sometimes lead to an explosive eruption. In a plinian eruption the plug is destroyed and ash is ejected. Glacial erosion can lead to exposure of the plug on one side, while a long slope of material remains on the opposite side. Such landforms are called crag and tail. If a plug is preserved, erosion may remove the surrounding rock while the erosion-resistant plug remains, producing a distinctive upstanding landform. Examples of volcanic plugs Africa Near the village of Rhumsiki in the Far North Province of Cameroon, Kapsiki Peak is an example of a volcanic plug and is one of the most photographed parts of the Mandara Mountains. Spectacular volcanic plugs are present in the center of La Gomer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rio Grande Southern Railroad
The Rio Grande Southern Railroad (reporting mark RGS, also referred to as "The Southern") was a 3 ft (914 mm) narrow-gauge railroad which ran in the southwestern region of the US state of Colorado, from the towns of Durango to Ridgway, routed via Lizard Head Pass. Built by Russian immigrant and Colorado toll road builder Otto Mears, the RGS operated from 1891 through 1951 and was built with the intent to transport immense amounts of silver mineral traffic that were being produced by the mining communities of Rico and Telluride. On both ends of the railroad, there were interchanges with The Denver and Rio Grande Railroad (reporting mark D&RG(W), later known as the Denver and Rio Grande Western), which would ship the traffic the RGS hauled elsewhere like the San Juan Smelter in Durango. For the first few years of its life, the RGS would have fallen under the definition of a "Bonanza Railroad" which meant it was an instant success, quickly generating more than enough m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trout Lake (Colorado)
Trout Lake is a lake located in southeast San Miguel County, Colorado, in Uncompahgre National Forest. Trout Lake is a 15-minute drive from Ophir via Colorado State Highway 145 and a 30-minute drive from Telluride. History Trout Lake was originally explored by American fur-trappers and pioneers, who often used the lake as a stopping point for their expeditions. The population of Trout Lake grew after the construction of the Rio Grande Southern Railroad and the nearby Ames Hydroelectric Generating Plant in the 1890s. Early History While it is unknown if Spanish, Mexican, or Native American explorers reached Trout Lake previously, the first record of Trout Lake was taken by an American fur trapping expedition. In the spring of 1831, the St. Louis Fur Company employed a party of 60 men under the command of Colonel William G Walton to trap beavers and other fur-bearing animals along the headwaters of the San Juan River. The party spent the summer of 1833 in the valley of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lizard Head Pass
Lizard Head Pass, elevation , is a mountain pass in the San Juan Mountains of Colorado, on the border between Dolores and San Miguel counties. It is also on the divide between the watersheds of the Dolores River The Dolores River is a tributary of the Colorado River, approximately long, in the U.S. states of Colorado and Utah. The river drains a rugged and arid region of the Colorado Plateau west of the San Juan Mountains. Its name derives from the Sp ... and San Miguel River. The pass lies in the saddle between Lizard Head and Sheep Mountain. History The pass is named for a prominent nearby peak that is said to look like the head of a lizard, the spire of Lizard Head. The pass is currently traversed by State Highway 145, about 12 miles south of the Telluride turnoff. It was also used by the historic Rio Grande Southern Railroad until 1952. Although the grades on both sides of the pass are mild for automobile traffic, this was a significant obstacle for the railr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colorado State Highway 145
State Highway 145 (SH 145) is a state highway in western Colorado. It runs for between U.S. Route 160 (US 160) in Cortez and SH 141 near Naturita. Route description The route begins in the south at its intersection with US 160 in the eastern portion of the city of Cortez. The route winds northward through the towns of Dolores, Rico, Sawpit, Placerville, Norwood, and Redvale before terminating at the junction with SH 141 about east of Naturita. Just north of its midpoint between Rico and Sawpit, the road also passes very near and provides access to the town of Telluride as well as Trout Lake. History On May 24, 2019, a large boulder fell onto a section of SH-145 near Dolores Dolores, Spanish for "pain; grief", most commonly refers to: * Our Lady of Sorrows or La Virgen María de los Dolores * Dolores (given name) Dolores may also refer to: Film * ''Dolores'' (2017 film), an American documentary by Peter Bratt * ' ... and covered the roadw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
El Diente Peak
El Diente Peak is a high summit in the San Miguel Mountains range of the Rocky Mountains of North America. The peak is located in the Lizard Head Wilderness of San Juan National Forest, north by east ( bearing 8°) of the Town of Rico in Dolores County, Colorado, United States. "El Diente" is Spanish for "The Tooth", a reference to the shape of the peak. Climbing The topographic prominence of El Diente Peak is only , so by a strict cutoff rule, it would not be counted as a separate peak from its higher neighbor Mount Wilson. However, the 3/4 mile (1.2 km) connecting ridge is a significant climbing challenge ( Class 4/5), making El Diente more independent than its prominence would indicate. Hence, it is often regarded as a full-fledged fourteener. El Diente is one of the more dramatic peaks in Colorado in terms of local relief and steepness. As a result, it is one of the most challenging climbs among Colorado's fourteeners. All routes involve at least class 3 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wilson Peak
Wilson Peak is a mountain peak in the U.S. state of Colorado. It is located in the Lizard Head Wilderness of the Uncompahgre National Forest, in the northwestern San Juan Mountains. It is the highest point in San Miguel County. The mountain was named for A.D. Wilson, the chief topographer with the Hayden Survey. Nearby Mount Wilson also honors him. The original indigenous name for the mountain was Shandoka, which translates to "Storm Maker", a reference to the peak's effect on local weather patterns. Geography Wilson Peak is in the western part of the San Juan Mountains. The western San Juans are also known as the San Miguel Mountains or the Wilson Massif. Two additional fourteen thousand foot peaks are within of its summit: Mount Wilson () and El Diente Peak (). Gladstone Peak () is located on the ridge between Wilson Peak and Mount Wilson. Recreation Wilson Peak is climbed by hundreds each year, primarily in summer months, but winter ascents are not unusual and so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mount Wilson (Colorado)
Mount Wilson is the highest summit of the San Miguel Mountains range of the Rocky Mountains of North America. The prominent fourteener is located in the Lizard Head Wilderness of San Juan National Forest, north by east ( bearing 12°) of the Town of Rico in Dolores County, Colorado, United States. Mount Wilson should not to be confused with the lower Wilson Peak nearby. The peak was named for A.D. Wilson, a topographer with the Hayden Survey. He was in the first ascent party, which climbed the peak on September 13, 1874, via the south ridge (a difficult route, not often climbed today).Walter R. Borneman and Lyndon J. Lampert, ''A Climbing Guide to Colorado's Fourteeners'' (3rd ed.), Pruett Publishing, 1994, , pp. 231–239. Climbing Mount Wilson is ranked among the top ten hardest of the Colorado fourteeners to climb.Louis W. Dawson, ''Dawson's Guide to Colorado's Fourteeners'', Vol. 2, Blue Clover Press, 1996, , pp. 160–165. The standard climbing route ascends th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fourteener
In the mountaineering parlance of the Western United States, a fourteener is a mountain peak with an elevation of at least . The 96 fourteeners in the United States are all west of the Mississippi River. Colorado has the most (53) of any single state; Alaska is second with 29. Many peak baggers try to climb all fourteeners in the contiguous United States, one particular state, or another region. __TOC__ Qualification criteria The summit of a mountain or hill may be measured in three principal ways: #Topographic elevation is the height of the summit above a geodetic sea level.All elevations in the 48 contiguous United States include an elevation adjustment from the National Geodetic Vertical Datum of 1929 (NGVD 29) to the North American Vertical Datum of 1988 (NAVD 88). For further information, please see this United States National Geodetic Surveybr>noteIf the elevation or prominence of a summit is calculated as a range of values, the arithmetic mean is shown. #Topo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uncompahgre National Forest
Uncompahgre National Forest is a U.S. National Forest covering 955,229 acres (1,492.55 sq mi, or 3,865.68 km2) in (in descending order of land area) parts of Montrose, Mesa, San Miguel, Ouray, Gunnison, Hinsdale, San Juan, and Delta Counties in western Colorado. Its headquarters are in Delta County, in the city of Delta. It borders the San Juan National Forest to the south. Within the national forest boundaries can be found the arid Uncompahgre Plateau and the northern portion of the San Juan Mountains. The forest contains three alpine wilderness areas: Uncompahgre (formerly the Big Blue Wilderness), Mount Sneffels, and Lizard Head. Uncompahgre National Forest was established on June 14, 1905. The Uncompahgre, Grand Mesa, and Gunnison National Forests were all administered separately until 1954 when Grand Mesa and Uncompahgre started to be administered as a single unit, with Gunnison added in 1973. Today, Uncompahgre National Forest is administered jointly with the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
