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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.
Cima volcanic field is a volcanic field in San Bernardino County, California, close to the border with Nevada. [3] [4] The volcanic field covers a surface area of 600 km 2 (230 sq mi) within the Mojave National Preserve west of the Cima Dome and consists of about 40 volcanic cones with about 60 lava flows.
Salt Ponds of Amboy. The town is south of the Granite Mountains, Providence Mountains, and the Mojave National Preserve. Adjacent to the south is the landmark Amboy Crater, and beyond to the southeast the Bullion Mountains. To the south is Bristol Dry Lake and the community of Cadiz, California. [citation needed]
Name Image Date Location County Ownership Description Crown Point: 1971: Multnomah: state park: Promontory in Columbia Gorge : Fort Rock State Monument: 1976: Lake: state park: Volcanic tuff ring
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National Natural Landmarks in California — designated by the National Park Service The main article for this category is List of National Natural Landmarks in California . Map all coordinates using OpenStreetMap