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Ring Mountain (California)
Ring Mountain is an elevated landform on the Tiburon Peninsula in Marin County, California. This mountain was named for George E. Ring, who served as a Marin County Supervisor from 1895 to 1903. A number of rare and endangered plant species inhabit Ring Mountain. The mountain's twin summits consist of serpentinite, a rock which is very high in magnesium, producing soils of unusual chemistry (serpentine soil). The landscape is strewn with many sizable boulders which exhibit a variety of lithologies including high-pressure metamorphic rocks of amphibolite, blueschist, greenschist, and eclogite grade. Native American pecked curvilinear nucleated petroglyphs created by the Coast Miwok people are also found here. History The Coast Miwok Ring Mountain is the ancestral home of the Coast Miwok, who maintain deep cultural ties to the land. Ring mountain has been protected as a public open space since 1981, being one of the most culturally significant landscapes in Marin County. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marin County, California
Marin County ( ) is a County (United States), county located in the northwestern part of the San Francisco Bay Area of the U.S. state of California. As of the 2020 United States census, 2020 census, the population was 262,231. Its county seat and largest city is San Rafael, California, San Rafael. Marin County is across the Golden Gate Bridge from San Francisco, and is included in the San Francisco–Oakland–Berkeley, CA Metropolitan Statistical Area. Marin County's natural sites include the Muir Woods Sequoia sempervirens, redwood forest, the Marin Headlands, Stinson Beach, CA, Stinson Beach, the Point Reyes National Seashore, and Mount Tamalpais. Marin is one of the List of highest-income counties in the United States, highest-income counties by per capita income and median household income. The county is governed by the Marin County Board of Supervisors. The Marin County Civic Center was designed by Frank Lloyd Wright and draws thousands of visitors a year to guided tours ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petroglyph
A petroglyph is an image created by removing part of a rock surface by incising, picking, carving, or abrading, as a form of rock art. Outside North America, scholars often use terms such as "carving", "engraving", or other descriptions of the technique to refer to such images. Petroglyphs, estimated to be 20,000 years old are classified as protected monuments and have been added to the tentative list of UNESCO's World Heritage Sites. Petroglyphs are found worldwide, and are often associated with prehistoric peoples. The word comes from the Greek prefix , from meaning " stone", and meaning "carve", and was originally coined in French as . In scholarly texts, a ''petroglyph'' is a rock engraving, whereas a '' petrograph'' (or ''pictograph'') is a rock painting. In common usage, the words are sometimes used interchangeably. Both types of image belong to the wider and more general category of rock art or parietal art. Petroforms, or patterns and shapes made by man ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Castilleja Neglecta
''Castilleja affinis'' is a species of ''Castilleja'' known by the common name coast Indian paintbrush. It is native to western North America from Washington (U.S. state), Washington to Baja California, where it grows on hills and mountains slopes along the coast and inland. Description This is a perennial herb growing an erect stem up to about 60 centimeters (24 in.) in maximum height. It is greenish to purple in color and may be hairless to quite hairy. The leaves are variable in shape and up to 8 centimeters long. The inflorescence is a series of bracts in shades of bright red to yellowish. Flowers appearing between the bracts are a bit longer and covered in hairs. They are green to purple lined with red or yellow. The fruit is a capsule just over a centimeter long. Subspecies There are three subspecies of this plant, two of which are rare: References External links *Jepson Manual Treatment: ''Castilleja affinis'' [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Streptanthus Niger
''Streptanthus glandulosus'' subsp. ''niger'' is an endangered subspecies of flowering plant within the family Brassicaceae. Like other genus members, this herb has wavy petal margins with perimeter calluses that discourage larval herbivory. This plant is endemic to the Tiburon Peninsula of Northern California, and occurs at elevations below 150 m on serpentine grasslands. The common name for this subspecies is Tiburon jewelflower or black jewelflower. This annual herb blooms in May and June and displays dark purple sepals. The etymology of this genus scientific name derives from the Greek word ''streptanthus'', meaning ''twisted flower'', with reference to the notable wavy margins of the petals. The subspecies name ''niger'' relates to the color of the seeds being black, although an alternate account cites the dark color of the petals as the source of the appellation. Description ''Streptanthus glandulosus'' subsp. ''niger'' is an annual herb attaining a height of 20 to 70 centi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calochortus Tiburonensis
''Calochortus tiburonensis'', the Tiburon Mariposa lily, is a rare member of the genus ''Calochortus'' in the family Liliaceae. It is endemic to Marin County, California, where it is known only from one population on Ring Mountain east of Mill Valley. There it occurs on a single serpentine outcrop in grasslands from in elevation. Description ''Calochortus tiburonensis'' is a perennial growing from a bulb to 10–60 cm in height with a single leaf. It produces anywhere from 2 to 7 erect flowers annually on a branching stem. The ciliate, light yellow-green petals are streaked with purplish-brown. When mature, ovaries form a capsule full of small, dark brown seeds. Conservation The plant was federally listed as a threatened species in 1995.USFWSDetermination of endangered status for ten plants and threatened status for two plants from serpentine habitats in the San Francisco Bay region of California.''Federal Register'' February 3, 1995. It is considered threatened due to l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mule Deer
The mule deer (''Odocoileus hemionus'') is a deer indigenous to western North America; it is named for its ears, which are large like those of the mule. Two subspecies of mule deer are grouped into the black-tailed deer. Unlike the related white-tailed deer (''Odocoileus virginianus''), which is found throughout most of North America east of the Rocky Mountains and in the valleys of the Rocky Mountains from Idaho and Wyoming northward, mule deer are found only on the western Great Plains, in the Rocky Mountains, in the southwest United States, and on the west coast of North America. Mule deer have also been introduced to Argentina and Kauai, Kauai, Hawaii. Taxonomy Mule deer can be divided into two main groups: the mule deer (''sensu stricto'') and the black-tailed deer. The first group includes all subspecies, except ''O. h. columbianus'' and ''Sitka deer, O. h. sitkensis'', which are in the black-tailed deer group. The two main groups have been treated as separate species, but ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coyote
The coyote (''Canis latrans''), also known as the American jackal, prairie wolf, or brush wolf, is a species of canis, canine native to North America. It is smaller than its close relative, the Wolf, gray wolf, and slightly smaller than the closely related eastern wolf and red wolf. It fills much of the same ecological niche as the golden jackal does in Eurasia; however, the coyote is generally larger. The coyote is listed as Least Concern, least concern by the International Union for Conservation of Nature, due to its wide distribution and abundance throughout North America. The species is versatile, able to adapt to and expand into environments modified by humans; urban coyotes are common in many cities. The coyote was sighted in eastern Panama (across the Panama Canal from their home range) for the first time in 2013. The coyote has 19 recognized subspecies. The average male weighs and the average female . Their fur color is predominantly light gray and red or fulvous int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Devise And Bequeath
A devise is the act of giving real property by will, traditionally referring to real property. A bequest is the act of giving property by will, usually referring to personal property. Today, the two words are often used interchangeably due to their combination in many wills as ''devise and bequeath'', a legal doublet. The phrase ''give, devise, and bequeath'', a legal triplet, has been used for centuries, including the will of William Shakespeare. The word ''bequeath'' is a verb form for the act of making a ''bequest''. Etymology Bequest comes from Old English , "to declare or express in words"—cf. "quoth". Interpretations Part of the process of probate involves interpreting the instructions in a will. Some wordings that define the scope of a bequest have specific interpretations. "All the estate I own" would involve all of the decedent's possessions at the moment of death. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conservation Easement
In the United States, a conservation easement (also called conservation covenant, conservation restriction or conservation servitude) is a power invested in a qualified land conservation organization called a "land trust", or a governmental (municipal, county, state or federal) entity to constrain, as to a specified land area, the exercise of rights otherwise held by a landowner so as to achieve certain conservation purposes. It is an interest in real property established by agreement between a landowner and land trust or unit of government. The conservation easement "runs with the land", meaning it is applicable to both present and future owners of the land. The grant of conservation easement, as with any real property interest, is part of the chain of title for the property and is normally recorded in local land records. The conservation easement's purposes will vary depending on the character of the particular property, the goals of the land trust or government unit, and the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Nature Conservancy
The Nature Conservancy (TNC) is a global environmental organization headquartered in Arlington, Virginia, United States. it works via affiliates or branches in 79 countries and territories, as well as across every state in the US. Founded in 1951, The Nature Conservancy has over one million members globally and has protected more than of land in its history. it is the largest environmental non-profit organization by assets and revenue in the Americas. History The Nature Conservancy developed out of a scholarly organization initially known as the Ecological Society of America (ESA). The ESA was founded in 1915, and later formed a Committee on Preservation of Natural Areas for Ecological Study, headed by Victor Ernest Shelford, Victor Shelford.Our History ". The Nature Conservancy. nature.org. Retrieved December 18, 2016.< ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radiolarite
Radiolarite is a Siliceous ooze, siliceous, comparatively hard, fine-grained, chert-like, and homogeneous sedimentary rock that is composed predominantly of the microscopic remains of radiolarians. This term is also used for Friability, indurated radiolarian oozes and sometimes as a synonym of radiolarian earth. However, radiolarian earth is typically regarded by Earth scientists to be the unconsolidated equivalent of a radiolarite. A radiolarian chert is well-bedded, microcrystalline radiolarite that has a well-developed siliceous cement or groundmass.Neuendorf, K.K.E., J.P. Mehl, Jr., and J.A. Jackson, J.A., eds. (2005) ''Glossary of Geology'' (5th ed.). Alexandria, Virginia, American Geological Institute. 779 pp. Mineralogy and petrology Radiolarites are biogenic, marine, finely layered sedimentary rocks. The layers reveal an interchange of clastic mica grains, radiolarian tests, carbonates and organic pigments. Clay minerals are usually not abundant. Radiolarites deposite ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
