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Interior of Amboy Crater showing a lava lake and the distant breach in the cinder cone rim. Interior of Amboy Crater from near breach showing lava lakes. Amboy Crater is a dormant cinder cone volcano that rises above a 70-square-kilometer (27 sq mi) lava field in the eastern Mojave Desert of southern California, within Mojave Trails National Monument.
The National Natural Landmarks (NNL) Program recognizes and encourages the conservation of outstanding examples of the natural history of the United States. [1] It is the only national natural areas program that identifies and recognizes the best examples of biological and geological features in both public and private ownership.
Name Image Date Location County Ownership Description Amboy Crater: May 1973: San Bernardino: Federal (Bureau of Land Management) A 6,000-year-old volcanic cinder cone, made up of pahoehoe, just off historic U.S. Highway 66.
The Bristol Mountains are found in the Mojave Desert of California, USA, just west of Mojave National Preserve.The range, which reaches an elevation of 3,874 feet (1,181 m), is located in San Bernardino County, and crosses Interstate 40 between Ludlow and the Granite Mountains.
Hypertension is a very common condition, affecting about half of all adults in the U.S. But it doesn’t always have symptoms, so about one in three people don’t know they have it.
Mojave Trails National Monument is a large U.S. National Monument located in the state of California between Interstates 15 and 40. [1] The park was created to preserve a wide variety of geological and cultural features including several titular trails - the Old Spanish Trail , the World War II -era Desert Training Center and Route 66 .
Secondary hypertension is hypertension due to an identifiable cause, and may result in certain specific additional signs and symptoms. For example, as well as causing high blood pressure, Cushing's syndrome frequently causes truncal obesity , [ 24 ] glucose intolerance , moon face , a hump of fat behind the neck and shoulders (referred to as a ...
National Natural Landmarks of Nevada as designated by the National Park Service The main article for this category is National Natural Landmark . See also: List of National Natural Landmarks