Tierra Redonda Mountain: Difference between revisions
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{{Infobox mountain |
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{{references}} |
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| name = Tierra Redonda Mountain |
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| photo = |
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| photo_caption = |
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| elevation = {{convert|2070|ft|0|abbr=on}} |
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| elevation_ref = {{NAVD88}}<ref name="ngs">{{cite ngs |id=FV1810 |name=2051=Lynch |access-date=2009-08-05}}</ref> |
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| prominence = |
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| location = [[San Luis Obispo County, California|San Luis Obispo County]], [[California]], [[United States|U.S.]]<ref name="gnis">{{cite gnis |id=250487 |name=Tierra Redonda Mountain |access-date=2009-08-03}}</ref> |
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| range = [[Santa Lucia Range]] |
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| map = USA California |
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| coordinates = {{coord|35.771021347|N|120.985935089|W|type:mountain_region:US-CA_scale:100000_source:NGS|format=dms|display=inline,title}} |
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| range_coordinates = |
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| coordinates_ref = <ref name="ngs"/> |
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| topo = [[United States Geological Survey|USGS]] Tierra Redonda Mountain |
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| type = |
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| age = |
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| first_ascent = |
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| easiest_route = Trail hike |
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}} |
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'''Tierra Redonda Mountain''' is a mountain in northwestern [[San Luis Obispo County]], [[California]]. It is in the eastern portion of the [[Santa Lucia Range]], separated from the main ridge by the Nacimiento River. |
'''Tierra Redonda Mountain''' is a mountain in northwestern [[San Luis Obispo County, California|San Luis Obispo County]], [[California]].<ref name="gnis"/> It is in the eastern portion of the [[Santa Lucia Range]], separated from the main ridge by the Nacimiento River. |
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==Location== |
==Location== |
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The mountain is north of [[Lake Nacimiento]], with the summit being about a mile and a half (two kilometers) from the shoreline near the northwestern extremity of the lake. |
The mountain is north of [[Lake Nacimiento]], with the summit being about a mile and a half (two kilometers) from the shoreline near the northwestern extremity of the lake. It is about {{convert|18|mi|km}} from the Pacific Ocean at [[San Simeon, California|San Simeon]]. The elevation of the summit is {{convert|2051|ft|m}}. The primary maintained public road to the mountain is Interlake Road, San Luis Obispo County G14 (also signed in nearby Monterey County as G14), which passes about {{convert|1.5|mi|km|abbr=off|sp=us}} northeast of the summit. This road intersects U.S. Highway 101 at Paso Robles, about {{convert|20|mi|km|abbr=off|sp=us}} to the southeast. Oak Shores Drive winds around the western portion of the mountain from a junction with G14 to the shore of Lake Nacimiento, and Tierra Redonda Road comes around from the east. |
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The mountain is part of a small island of [[Bureau of Land Management]] land, 320 |
The mountain is part of a small island of [[Bureau of Land Management]] land, {{convert|320|acre|km2}}, entirely surrounded by private land. BLM has designated it as an Area of Critical Environmental Concern (ACEC), along with several other BLM holdings in the area (such as the [[Carrizo Plain]] and Cypress Mountain) due to the high concentration of unique, sensitive, and threatened species found in the vicinity, as well as for its singularly rich [[paleontology|paleontological]] resources. This designation is in part because of encroaching development from the south, where private residences are being built on the shore of Lake Nacimiento, within the Oak Shores community. The region has also designated the region as open space in their General Plan.<ref name="Coast Management Area">{{cite web |title= Chapter 11 - ACECs Coast Management Area - Tierra Redonda |publisher=U.S. Department of the Interior Bureau of Land Management |url=http://www.blm.gov/ca/st/en/fo/bakersfield/Programs/planning/rmpcontents/chpt11_tierra_redonda.html |access-date=2008-07-14}}</ref> |
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==Natural setting== |
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Primary plant communities represented around the mountain include [[chaparral]] and [[blue oak woodlands]], although grasslands and unusual sand dune formations also occur. Within the ACEC there are several sensitive plant species, some endemic to the area. These include several species of ''Chorizanthe'', among the most concentrated known anywhere, along with ribbonwood, Salinas Valley goldfields, San Luis Obispo County lupine, and the one-awned spineflower.<ref name="Coast Management Area"/> |
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It has had two extinct creatures named after it, due to them having been discovered there; the [[aetosaur]] ''[[Redondasuchus]]'',<ref>{{cite web |url=http://www.dinosauria.com/dml/names/aeto.htm |title=Aetosauria Translation and Pronounciation Guide |publisher=www.dinosauria.com |date=1996-01-01 |accessdate=2008-07-14}}</ref> and the [[phytosaur]] ''[[Redondasaurus]]''.<ref>{{cite web |url=http://www.dinosauria.com/dml/names/phyto.htm |title=Phytosauria Translation and Pronounciation Guide |publisher=www.dinosauria.com |date=1996-01-01 |accessdate=2008-07-14}}</ref> Other fossils include primarily [[Miocene|middle-Miocene]] creatures<ref>{{cite web |url=http://www.osti.gov/energycitations/product.biblio.jsp?osti_id=5007157 |title=Energy Citations Database |publisher=www.osti.gov |date=2001-05-13 |accessdate=2008-07-14}}</ref> such as the [[Redfieldidae|redfieldiids]] ''[[Cionichthys]]'' and ''[[Synorichthys]] stewarti'', the [[Semionotonidae|semionotids]] ''[[Semionotus]]'' and cf. ''[[Hemicalypterus]]'', the [[lungfish]] ''[[Arganodus]]'', a possible ''[[coelacanth]]'', the [[temnospondyl]] ''[[Apachesaurus]] gregorii'', an unnamed [[cynodont]], the [[archosauromorph]] ''[[Vancleavea]]'', an unnamed aetosaur, a giant [[sphenosuchian]], and may even have housed fossils of [[theropod]] dinosaurs.<ref name="GSA">{{cite web |url=http://gsa.confex.com/gsa/2005RM/finalprogram/abstract_86716.htm |title=The Microvertebrate Fauna of Shark Tooth Hill, Redonda Formation (Late Triassic, Apachean), Quay County, New Mexico |publisher=Andrew B. Heckert, Specer G. Lucas and Adrian P. Hunt, New Mexico Museum of National History |date=2005 |accessdate=2008-07-14}}</ref> |
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While petroleum exploration is not presently occurring in the vicinity, the potential for oil and gas is considered by the BLM to be moderate.<ref name="Coast Management Area"/> The Vaqueros Formation, which outcrops significantly on the mountain, accounting for its famous fossil beds, is an oil-bearing unit at the [[South Cuyama Oil Field|South Cuyama]] and [[Russell Ranch Oil Field]]s to the southeast, and the large, prolific [[San Ardo Oil Field]], one of the most active in California, is only ten miles to the northeast, along U.S. 101.<ref name="Cuyama Basin Oil">{{cite conference |title=Provenance of oil in southern Cuyama basin, California |date=January 1988 |conference=Annual meeting of the American Association of Petroleum Geologists, Houston, TX, USA, 20 Mar 1988 |osti=6591388 |last1=Kornacki |first1=A. S.}}</ref> |
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==Historical Facts== |
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The early pioneers of the area considered climbing to the summit of Tierra Redonda ("Terra Donda") a destination for a picnic. An American flag on a flagpole was visible from the lowlands. It was unknown who placed the flag or who replaced it when it became tattered. |
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==References== |
==References== |
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{{Reflist}} |
{{Reflist}} |
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{{Authority control}} |
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==Further reading== |
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* ''Subsurface Geology of East-central New Mexico'' By Roy W. Foster, Richard M. Frentress, Walter Charles Riese. Published 1972, [[New Mexico Geological Society]]. Original from the [[University of Michigan]]. |
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[[Category:Mountains of San Luis Obispo County, California]] |
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* ''Bulletin of the Geological Society of America'' By the [[Geological Society of America]]. Published 1890. |
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[[Category:Mountains of Southern California]] |
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* ''The San Andreas Fault System'' By Robert E. Powell, R. J. Weldon, Jonathan C. Matti. Published 1993 Geological Society of America. ISBN 0813711789 |
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Latest revision as of 05:34, 7 January 2025
| Tierra Redonda Mountain | |
|---|---|
  Tierra Redonda Mountain | |
| Highest point | |
| Elevation | 2,070 ft (631 m) NAVD 88[2] |
| Coordinates | 35°46′16″N 120°59′09″W / 35.771021347°N 120.985935089°W[2] |
| Geography | |
| Location | San Luis Obispo County, California, U.S.[1] |
| Parent range | Santa Lucia Range |
| Topo map | USGS Tierra Redonda Mountain |
| Climbing | |
| Easiest route | Trail hike |
Tierra Redonda Mountain is a mountain in northwestern San Luis Obispo County, California.[1] It is in the eastern portion of the Santa Lucia Range, separated from the main ridge by the Nacimiento River.
Location
[edit]The mountain is north of Lake Nacimiento, with the summit being about a mile and a half (two kilometers) from the shoreline near the northwestern extremity of the lake. It is about 18 miles (29 km) from the Pacific Ocean at San Simeon. The elevation of the summit is 2,051 feet (625 m). The primary maintained public road to the mountain is Interlake Road, San Luis Obispo County G14 (also signed in nearby Monterey County as G14), which passes about 1.5 miles (2.4 kilometers) northeast of the summit. This road intersects U.S. Highway 101 at Paso Robles, about 20 miles (32 kilometers) to the southeast. Oak Shores Drive winds around the western portion of the mountain from a junction with G14 to the shore of Lake Nacimiento, and Tierra Redonda Road comes around from the east.
The mountain is part of a small island of Bureau of Land Management land, 320 acres (1.3 km2), entirely surrounded by private land. BLM has designated it as an Area of Critical Environmental Concern (ACEC), along with several other BLM holdings in the area (such as the Carrizo Plain and Cypress Mountain) due to the high concentration of unique, sensitive, and threatened species found in the vicinity, as well as for its singularly rich paleontological resources. This designation is in part because of encroaching development from the south, where private residences are being built on the shore of Lake Nacimiento, within the Oak Shores community. The region has also designated the region as open space in their General Plan.[3]
Natural setting
[edit]Primary plant communities represented around the mountain include chaparral and blue oak woodlands, although grasslands and unusual sand dune formations also occur. Within the ACEC there are several sensitive plant species, some endemic to the area. These include several species of Chorizanthe, among the most concentrated known anywhere, along with ribbonwood, Salinas Valley goldfields, San Luis Obispo County lupine, and the one-awned spineflower.[3]
While petroleum exploration is not presently occurring in the vicinity, the potential for oil and gas is considered by the BLM to be moderate.[3] The Vaqueros Formation, which outcrops significantly on the mountain, accounting for its famous fossil beds, is an oil-bearing unit at the South Cuyama and Russell Ranch Oil Fields to the southeast, and the large, prolific San Ardo Oil Field, one of the most active in California, is only ten miles to the northeast, along U.S. 101.[4]
Historical Facts
[edit]The early pioneers of the area considered climbing to the summit of Tierra Redonda ("Terra Donda") a destination for a picnic. An American flag on a flagpole was visible from the lowlands. It was unknown who placed the flag or who replaced it when it became tattered.
References
[edit]- ^ a b "Tierra Redonda Mountain". Geographic Names Information System. United States Geological Survey, United States Department of the Interior. Retrieved August 3, 2009.
- ^ a b "2051=Lynch". NGS Data Sheet. National Geodetic Survey, National Oceanic and Atmospheric Administration, United States Department of Commerce. Retrieved August 5, 2009.
- ^ a b c "Chapter 11 - ACECs Coast Management Area - Tierra Redonda". U.S. Department of the Interior Bureau of Land Management. Retrieved July 14, 2008.
- ^ Kornacki, A. S. (January 1988). Provenance of oil in southern Cuyama basin, California. Annual meeting of the American Association of Petroleum Geologists, Houston, TX, USA, 20 Mar 1988. OSTI 6591388.
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