| Chalk Mountains | |
|---|---|
  Chalk Mountains Location of Chalk Mountains in California [1] | |
| Highest point | |
| Elevation | 761 m (2,497 ft) |
| Geography | |
| Country | United States |
| State | California |
| District | Humboldt County |
| Range coordinates | 40°26′42.501″N123°52′14.149″W / 40.44513917°N 123.87059694°W |
| Topo map | USGS Bridgeville |
The Chalk Mountains are a mountain range in Humboldt County, California. [1]
Bouldering is a form of free climbing that is performed on small rock formations or artificial rock walls without the use of ropes or harnesses. While bouldering can be done without any equipment, most climbers use climbing shoes to help secure footholds, chalk to keep their hands dry and to provide a firmer grip, and bouldering mats to prevent injuries from falls. Unlike free solo climbing, which is also performed without ropes, bouldering problems are usually less than six metres (20 ft) tall. Traverses, which are a form of boulder problem, require the climber to climb horizontally from one end to another. Artificial climbing walls allow boulderers to climb indoors in areas without natural boulders. In addition, bouldering competitions take place in both indoor and outdoor settings.
Chalk is a soft, white, porous, sedimentary carbonate rock. It is a form of limestone composed of the mineral calcite and originally formed deep under the sea by the compression of microscopic plankton that had settled to the sea floor. Chalk is common throughout Western Europe, where deposits underlie parts of France, and steep cliffs are often seen where they meet the sea in places such as the Dover cliffs on the Kent coast of the English Channel.
Monroe is a town located in eastern Fairfield County, Connecticut, United States. The population was 18,825 at the 2020 census. The town is part of the Greater Bridgeport Planning Region.
Mount Vernon is a city in Linn County, Iowa, United States, adjacent to the city of Lisbon. The population was 4,527 at the time of the 2020 census. Mount Vernon is part of the Cedar Rapids Metropolitan Statistical Area.
Needle may refer to:
The South Downs are a range of chalk hills in the south-eastern coastal counties of England that extends for about 260 sq mi (670 km2) across the south-eastern coastal counties of England from the Itchen valley of Hampshire in the west to Beachy Head, in the Eastbourne Downland Estate, East Sussex, in the east. The Downs are bounded on the northern side by a steep escarpment, from whose crest there are extensive views northwards across the Weald. The South Downs National Park forms a much larger area than the chalk range of the South Downs, and includes large parts of the Weald.
The North Downs are a ridge of chalk hills in south east England that stretch from Farnham in Surrey to the White Cliffs of Dover in Kent. Much of the North Downs comprises two Areas of Outstanding Natural Beauty (AONBs): the Surrey Hills and the Kent Downs. The North Downs Way National Trail runs along the North Downs from Farnham to Dover.
The Weber River is a c. 125-mile (201 km) long river of northern Utah, United States. It begins in the northwest of the Uinta Mountains and empties into the Great Salt Lake. The Weber River was named for American fur trapper John Henry Weber.
The Chalk Bluffs is a barren chalk escarpment in the northeastern part of the U.S. state of Colorado, stretching from the Wyoming border east of I-25 to near the South Platte River in Logan County and Weld County.
Mount Princeton is a high and prominent mountain summit of the Collegiate Peaks in the Sawatch Range of the Rocky Mountains of North America. The 14,204 feet (4,329 m) fourteener is located in San Isabel National Forest, 7.8 miles (12.6 km) southwest of the Town of Buena Vista in Chaffee County, Colorado, United States. The mountain was named in honor of Princeton University.
Chalk Creek is a 27.3-mile-long (43.9 km) river flowing east from the Collegiate Peaks mountain range in Chaffee County, Colorado. Mount Antero borders the southern side of the river, while Mount Princeton borders the northern side. The headwaters of the river are located at the Continental Divide. The river empties into the Arkansas River at the town of Nathrop, Colorado.
Sioux National Forest was a National Forest (NF) established by Executive Order 908 on July 1, 1908. The order called for the consolidation of the following national forests and forest units into a single entity:
The Niobrara Formation, also called the Niobrara Chalk, is a geologic formation in North America that was deposited between 87 and 82 million years ago during the Coniacian, Santonian, and Campanian stages of the Late Cretaceous. It is composed of two structural units, the Smoky Hill Chalk Member overlying the Fort Hays Limestone Member. The chalk formed from the accumulation of coccoliths from microorganisms living in what was once the Western Interior Seaway, an inland sea that divided the continent of North America during much of the Cretaceous. It underlies much of the Great Plains of the US and Canada. Evidence of vertebrate life is common throughout the formation and includes specimens of plesiosaurs, mosasaurs, pterosaurs, and several primitive aquatic birds. The type locality for the Niobrara Chalk is the Niobrara River in Knox County in northeastern Nebraska. The formation gives its name to the Niobrara cycle of the Western Interior Seaway.
The Chalk Buttes are a mountain range in Kings County, California.
The Chalk Hills are a north–south-running low 'mountain' range in the San Fernando Valley perpendicular to and adjoining the Santa Monica Mountains. They are located in the Woodland Hills District of the City of Los Angeles in Southern California. They run between DeSoto and Winnetka Avenues, from south of Ventura Boulevard north to near Victory Boulevard.
The Chalk Mountains are a mountain range in Archuleta County, Colorado.
The Chalk Mountains are a mountain range in Brewster County, Texas.
Chalk Mountain is a small unincorporated community in Erath County, Texas, United States. It lies along U.S. Route 67 near the Somervell County line, approximately 12 miles southwest of Glen Rose. In 2009, Chalk Mountain was the site of a meteorite hoax. United States Navy SEAL Sniper Chris Kyle and Chad Littlefield were murdered at a shooting range near Chalk Mountain on February 2, 2013.
The Chalk Buttes, el. 4,134 feet (1,260 m), is a small mountain range northeast of Powderville, Montana in Carter County, Montana.
 | This Humboldt County, California–related article is a stub. You can help Wikipedia by expanding it. |