Ring Mountain (California)

Ring Mountain
Highest point
Elevation603 ft (184 m) NAVD 88[1]
Prominence402 ft (123 m)[2]
Coordinates37°54′35″N 122°29′09″W / 37.909691528°N 122.485779814°W / 37.909691528; -122.485779814[1]
Geography
Ring Mountain is located in California
Ring Mountain
Ring Mountain
Location in California
Ring Mountain is located in the United States
Ring Mountain
Ring Mountain
Ring Mountain (the United States)
LocationMarin County, California, U.S.
Topo mapUSGS San Quentin
Pecked curvilinear nucleated petroglyphs on a rock on Ring Mountain

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.[3]

A number of rare and endangered plant species inhabit Ring Mountain.[4] The mountain's twin summits consist of serpentinite,[5] 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.[6]

Native American pecked curvilinear nucleated petroglyphs created by the Coast Miwok people are also found here.[7]

  1. ^ a b "Ring". NGS Data Sheet. National Geodetic Survey, National Oceanic and Atmospheric Administration, United States Department of Commerce. Retrieved 2014-02-12.
  2. ^ "Ring Mountain, California". Peakbagger.com. Retrieved 2014-02-13.
  3. ^ "Ring Mountain, Open Space Preserve". County of Marin. Archived from the original on 2008-06-21. Retrieved 2009-12-07.
  4. ^ Earth Metrics Inc. (1989) Marinero Estates Environmental Impact Report, Tiburon, California, prepared for the city of Tiburon, Ca.
  5. ^ Bero, David A. (2014). "Geology of Ring Mountain and Tiburon Peninsula, Marin County, California". National Geologic Map Database. Retrieved 2019-09-28.
  6. ^ Anczkiewicz, Robert; Platt, John P.; Thirlwall, Matthew F.; Wakabayashi, John (2004-08-30). "Franciscan subduction off to a slow start: evidence from high-precision Lu–Hf garnet ages on high grade-blocks". Earth and Planetary Science Letters. 225 (1): 147–161. Bibcode:2004E&PSL.225..147A. doi:10.1016/j.epsl.2004.06.003. ISSN 0012-821X.
  7. ^ Hogan, C. Michael (2008). Andy Burnham (ed.). "Ring Mountain, The Megalithic Portal".

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