Charleston County, South Carolina, USAi
| Regional Level Types | |
|---|---|
| Charleston County | County |
| South Carolina | State |
| USA | Country |
This page is currently not sponsored. Click here to sponsor this page.
Locality type:
Largest Settlements:
| Place | Population |
|---|---|
| Charleston | 132,609 (2017) |
| North Charleston | 108,304 (2017) |
| Mount Pleasant | 81,317 (2017) |
| Hanahan | 17,997 (2011) |
| Ladson | 13,790 (2011) |
| Hollywood | 4,962 (2017) |
Other Languages:
French:
comté de Charleston, Caroline du Sud, États-Unis
German:
Charleston County, South Carolina, Vereinigte Staaten
Italian:
contea di Charleston, Carolina del Sud, Stati Uniti d'America
Russian:
Чарлстон, Южная Каролина, Соединённые Штаты Америки
Simplified Chinese:
查尔斯顿县, 南卡罗来纳州, 美国
Spanish:
Condado de Charleston, Carolina del Sur, Estados Unidos
Albanian:
Charleston County, South Carolina, Shtetet e Bashkuara të Amerikës
Arabic:
مقاطعة تشارلستون, كارولاينا الجنوبية, الولايات المتحدة
Armenian:
Չառլստոն շրջան, Հարավային Կարոլինա, Ամերիկայի Միացյալ Նահանգներ
Basque:
Charleston konderria , Hego Carolina
Bavarian:
Charleston County, South Carolina, Vaoanigte Stootn
Belarusian:
Чарлстан, Паўднёвая Караліна, Злучаныя Штаты Амерыкі
Bishnupriya Manipuri:
চার্লসটন কাউন্টি, সাউথ ক্যারোলাইনা, তিলপারাষ্ট্র
Bulgarian:
Чарлстън, Южна Каролина, Съединени американски щати
Cebuano:
Charleston County, South Carolina
Czech:
Charleston County, Jižní Karolína, Spojené státy americké
Dutch:
Charleston County, South Carolina, Verenigde Staten
Esperanto:
Kantono Charleston, Suda Karolino
Estonian:
Charlestoni maakond, Lõuna-Carolina, Ameerika Ühendriigid
Farsi/Persian:
شهرستان چارلستون، کارولینای جنوبی, کارولینای جنوبی, ایالات متحده آمریکا
Georgian:
ჩარლსტონის ოლქი, სამხრეთი კაროლინა, ამერიკის შეერთებული შტატები
Hungarian:
Charleston megye, Dél-Karolina, Amerikai Egyesült Államok
Irish Gaelic:
Contae Charleston, Carolina Theas, Stáit Aontaithe Mheiriceá
Japanese:
チャールストン郡, サウスカロライナ州, アメリカ合衆国
Low Saxon/Low German:
Charleston County, Süüd-Carolina, USA
Min Dong Chinese:
Charleston Gông, South Carolina
Minnan / Hokkien-Taiwanese:
Charleston Kūn
Norwegian:
Charleston County, Sør-Carolina, USA
Polish:
Hrabstwo Charleston, Karolina Południowa, Stany Zjednoczone
Portuguese:
Condado de Charleston, Carolina do Sul, Estados Unidos
Romanian:
Comitatul Charleston, Carolina de Sud, Statele Unite ale Americii
Sardinian:
contea de Charleston, Carolina de Sud, Istados Unidos de Amèrica
Serbian:
Округ Чарлстон, Јужна Каролина, Сједињене Америчке Државе
Serbo-Croatian:
Charleston County, Južna Karolina, Sjedinjene Američke Države
Swedish:
Charleston County, South Carolina, USA
Turkish:
Charleston ilçesi, Güney Karolina, Amerika Birleşik Devletleri
Ukrainian:
Чарлстон, Південна Кароліна, Сполучені Штати Америки
Urdu:
چارلسٹن کاؤنٹی، جنوبی کیرولینا, جنوبی کیرولائنا, ریاستہائے متحدہ امریکا
Vietnamese:
Quận Charleston, South Carolina, Chủng Quốc Hoa Kỳ
Waray:
Condado han Charleston, South Carolina, Estados Unidos
Western Punjabi:
چارلزٹن کاؤنٹی, جنوبی کیرولائنا, امریکہ
A coastal county with an area of 1,358 square miles (3,520 km2), of which 916 square miles (2,370 km2) is land and the remainder water.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded from this region.Mineral List
Mineral list contains entries from the region specified including sub-localities11 valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Rock list contains entries from the region specified including sub-localities
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ 'Amber' |
| ⓘ 'Amber var. Ambrosine' Formula: C10H16O + (H2S) |
| ⓘ 'Amphibole Supergroup' Formula: AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 Reference: Eric R.Force,Andrew E. Grosz, Patrica J.Loferski and Arthur H.Maybin (1982) Aeroradioactivity Maps in Heavy Mineral Exploration Charleston , South Carolina ;USGS Professional Paper 1218 |
| ⓘ 'Apatite' Formula: Ca5(PO4)3(Cl/F/OH) Localities: Reference: National Geochemical Database :Rocks : USGS File # W195180 |
| ⓘ 'Apatite var. Collophane' Locality: Charleston Region deposits, Charleston Mining District, Charleston County, South Carolina, USA Reference: U.S. Geological Survey,2005, Mineral Resources Data System: U.S Geological Survey,Reston, Virginia |
| ⓘ Dolomite Formula: CaMg(CO3)2 Locality: Charleston Region deposits, Charleston Mining District, Charleston County, South Carolina, USA Reference: U.S. Geological Survey,2005, Mineral Resources Data System: U.S Geological Survey,Reston, Virginia |
| ⓘ Epidote Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) Reference: Eric R.Force,Andrew E. Grosz, Patrica J.Loferski and Arthur H.Maybin (1982) Aeroradioactivity Maps in Heavy Mineral Exploration Charleston , South Carolina ;USGS Professional Paper 1218 |
| ⓘ 'Glauconite' Formula: (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2 Reference: Earle Sloan (1908) Mineral Localities of South Carolina :South Carolina Geological Survey Bulletin No.2 |
| ⓘ Goethite Formula: α-Fe3+O(OH) Reference: Eric R.Force,Andrew E. Grosz, Patrica J.Loferski and Arthur H.Maybin (1982) Aeroradioactivity Maps in Heavy Mineral Exploration Charleston , South Carolina ;USGS Professional Paper 1218 |
| ⓘ Ilmenite Formula: Fe2+TiO3 Localities: Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| ⓘ 'K Feldspar' Formula: KAlSi3O8 Reference: Eric R.Force,Andrew E. Grosz, Patrica J.Loferski and Arthur H.Maybin (1982) Aeroradioactivity Maps in Heavy Mineral Exploration Charleston , South Carolina ;USGS Professional Paper 1218 |
| ⓘ 'Leucoxene' Reference: John B. Mertie ,Jr. (1951) Heavy Minerals in the Pleistocene Terrace Deposits of South Carolina and Georgia : USGS |
| ⓘ 'Limonite' Reference: Eric R.Force,Andrew E. Grosz, Patrica J.Loferski and Arthur H.Maybin (1982) Aeroradioactivity Maps in Heavy Mineral Exploration Charleston , South Carolina ;USGS Professional Paper 1218 |
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 Localities: Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| ⓘ 'Monazite' Formula: REE(PO4) Localities: Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| ⓘ Montmorillonite Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O Locality: Charleston Region deposits, Charleston Mining District, Charleston County, South Carolina, USA Reference: U.S. Geological Survey,2005, Mineral Resources Data System: U.S Geological Survey,Reston, Virginia |
| ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 Reference: Eric R. Force ,Andrew E. Grosz , Patricia J. Loferski and Arther H. Maybin (1982) Aeroradioactivity Maps in Heavy -Mineral Exploration Charleston, South Carolina Area :USGS Professional Paper 1218 |
| ⓘ Muscovite var. Illite Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2 Reference: Eric R. Force ,Andrew E. Grosz , Patricia J. Loferski and Arther H. Maybin (1982) Aeroradioactivity Maps in Heavy -Mineral Exploration Charleston, South Carolina Area :USGS Professional Paper 1218 |
| ⓘ Quartz Formula: SiO2 Locality: Charleston Region deposits, Charleston Mining District, Charleston County, South Carolina, USA Reference: U.S. Geological Survey,2005, Mineral Resources Data System: U.S Geological Survey,Reston, Virginia |
| ⓘ Rutile Formula: TiO2 Localities: Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| ⓘ Sillimanite Formula: Al2(SiO4)O Reference: Eric R.Force,Andrew E. Grosz, Patrica J.Loferski and Arthur H.Maybin (1982) Aeroradioactivity Maps in Heavy Mineral Exploration Charleston , South Carolina ;USGS Professional Paper 1218 |
| ⓘ 'Tourmaline' Formula: AD3G6 (T6O18)(BO3)3X3Z Reference: Eric R.Force,Andrew E. Grosz, Patrica J.Loferski and Arthur H.Maybin (1982) Aeroradioactivity Maps in Heavy Mineral Exploration Charleston , South Carolina ;USGS Professional Paper 1218 |
| ⓘ Zircon Formula: Zr(SiO4) Localities: Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Goethite | 4.00. | α-Fe3+O(OH) |
| ⓘ | Ilmenite | 4.CB.05 | Fe2+TiO3 |
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | Rutile | 4.DB.05 | TiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Dolomite | 5.AB.10 | CaMg(CO3)2 |
| Group 9 - Silicates | |||
| ⓘ | Epidote | 9.BG.05a | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ | 'Glauconite' | 9.EC. | (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2 |
| ⓘ | Montmorillonite | 9.EC.40 | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | var. Illite | 9.EC.15 | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| ⓘ | Sillimanite | 9.AF.05 | Al2(SiO4)O |
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
| Unclassified Minerals, Rocks, etc. | |||
| ⓘ | 'Amber' | - | |
| ⓘ | 'var. Ambrosine' | - | C10H16O + (H2S) |
| ⓘ | 'Amphibole Supergroup' | - | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| ⓘ | 'Apatite' | - | Ca5(PO4)3(Cl/F/OH) |
| ⓘ | 'var. Collophane' | - | Ca5(PO4)3(Cl/F/OH) |
| ⓘ | 'K Feldspar' | - | KAlSi3O8 |
| ⓘ | 'Leucoxene' | - | |
| ⓘ | 'Limonite' | - | |
| ⓘ | 'Monazite' | - | REE(PO4) |
| ⓘ | 'Tourmaline' | - | AD3G6 (T6O18)(BO3)3X3Z |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Amber var. Ambrosine | C10H16O + (H2S) |
| H | ⓘ Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| H | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| H | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| H | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| H | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| H | ⓘ Goethite | α-Fe3+O(OH) |
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Glauconite | (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2 |
| B | Boron | |
| B | ⓘ Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
| C | Carbon | |
| C | ⓘ Amber var. Ambrosine | C10H16O + (H2S) |
| C | ⓘ Dolomite | CaMg(CO3)2 |
| O | Oxygen | |
| O | ⓘ Amber var. Ambrosine | C10H16O + (H2S) |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Zircon | Zr(SiO4) |
| O | ⓘ Ilmenite | Fe2+TiO3 |
| O | ⓘ Rutile | TiO2 |
| O | ⓘ Monazite | REE(PO4) |
| O | ⓘ Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| O | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| O | ⓘ Dolomite | CaMg(CO3)2 |
| O | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ K Feldspar | KAlSi3O8 |
| O | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| O | ⓘ Sillimanite | Al2(SiO4)O |
| O | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| O | ⓘ Goethite | α-Fe3+O(OH) |
| O | ⓘ Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Glauconite | (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2 |
| F | Fluorine | |
| F | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| F | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Na | Sodium | |
| Na | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Na | ⓘ Glauconite | (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2 |
| Mg | Magnesium | |
| Mg | ⓘ Dolomite | CaMg(CO3)2 |
| Mg | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Mg | ⓘ Glauconite | (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2 |
| Al | Aluminium | |
| Al | ⓘ Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| Al | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Al | ⓘ K Feldspar | KAlSi3O8 |
| Al | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Al | ⓘ Sillimanite | Al2(SiO4)O |
| Al | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Glauconite | (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2 |
| Si | Silicon | |
| Si | ⓘ Zircon | Zr(SiO4) |
| Si | ⓘ Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| Si | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ K Feldspar | KAlSi3O8 |
| Si | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Si | ⓘ Sillimanite | Al2(SiO4)O |
| Si | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Glauconite | (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2 |
| P | Phosphorus | |
| P | ⓘ Monazite | REE(PO4) |
| P | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| S | Sulfur | |
| S | ⓘ Amber var. Ambrosine | C10H16O + (H2S) |
| Cl | Chlorine | |
| Cl | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| Cl | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| K | Potassium | |
| K | ⓘ Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| K | ⓘ K Feldspar | KAlSi3O8 |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| K | ⓘ Glauconite | (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2 |
| Ca | Calcium | |
| Ca | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| Ca | ⓘ Dolomite | CaMg(CO3)2 |
| Ca | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Ca | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Ti | Titanium | |
| Ti | ⓘ Ilmenite | Fe2+TiO3 |
| Ti | ⓘ Rutile | TiO2 |
| Ti | ⓘ Amphibole Supergroup | AB2C5((Si,Al,Ti)8O22)(OH,F,Cl,O)2 |
| Fe | Iron | |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | ⓘ Ilmenite | Fe2+TiO3 |
| Fe | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Fe | ⓘ Goethite | α-Fe3+O(OH) |
| Fe | ⓘ Glauconite | (K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2 |
| Zr | Zirconium | |
| Zr | ⓘ Zircon | Zr(SiO4) |
Fossils
There are 49 fossil localities from the PaleoBioDB database within this region.BETA TEST - These data are provided on an experimental basis and are taken from external databases. Mindat.org has no control currently over the accuracy of these data.
| Occurrences | 542 |
|---|---|
| Youngest Fossil Listed | 0.01 Ma (Pleistocene) |
| Oldest Fossil Listed | 145 Ma (Late Jurassic) |
| Stratigraphic Units | Click here to view 16 stratigraphic units. |
| Fossils from Region | Click here to show the list. |
| Fossil Localities | Click to show 49 fossil localities |
- South Carolina
- Charleston County
- Cenozoic🐚 4002 Wallingford Court
- Pleistocene🐚 Abbapoola Creek
- Pleistocene🐚 Ashley River
- Pleistocene🐚 Aviation Avenue
- Pleistocene🐚 Bees Ferry
- Cenozoic🐚 Bolton Phosphate Company
- Cenozoic🐚 Charleston
- Cretaceous🐚 Charleston basin
- Quaternary🐚 Charleston Harbor
- Cenozoic🐚 Charleston International Airport
- Quaternary🐚 Coast of SC
- Oligocene🐚 COC AF-18
- Neogene🐚 Cooper River
- Cenozoic🐚 Coosaw Preserve
- Oligocene🐚 Covington Estates
- Pleistocene🐚 Edisto Island
- Quaternary🐚 Folly Island Beach
- Cenozoic🐚 Golf Course Creek
- Pleistocene🐚 Hawthorne Trailer Park
- Pleistocene🐚 Loc. 313 - White Point Creek [Pamlico Fm]
- Paleogene🐚 M 900
- Charleston County
- South Carolina
- Charleston County
- Miocene🐚 Magnolia Phosphate Mine
- Cenozoic🐚 Mark Clark Expressway at Attaway Street
- Pleistocene🐚 Mark Clark Expressway borrow pit
- Oligocene🐚 Martins Landing
- Oligocene🐚 Middleton Oaks Road
- Pleistocene🐚 Nine Mile Bottom
- Pleistocene🐚 Northwoods Mall
- Oligocene🐚 PQ-ARMP09
- Pleistocene🐚 Runnymeade Plantation
- Oligocene🐚 Shadowmoss Golf Course Back 9
- Pleistocene🐚 Shipyard Creek
- Pleistocene🐚 Simmons Bluff
- Miocene🐚 Sta. 12011 - Johns Island [Hawthorn Fm]
- Paleogene🐚 Sta. 5252 - Ingleside [Santee Limestone]
- Miocene🐚 State Ports Authority Terminal
- Pleistocene🐚 Stono River
- Pleistocene🐚 Strawberry Hill
- Pleistocene🐚 Trailwood Trailer Park
- Cenozoic🐚 Turnberry Place
- Cenozoic🐚 USGS Johns Island
- Pleistocene🐚 Wadmalaw Sound
- Neogene🐚 Wando Mining Company
- Miocene🐚 Wando River
- Oligocene🐚 Woodstock Station
- Charleston County
Other Databases
| Wikipedia: | https://en.wikipedia.org/wiki/Charleston_County,_South_Carolina |
|---|---|
| Wikidata ID: | Q181015 |
| GeoNames ID: | 4574328 |
External Links
https://www.charlestoncounty.org/ (official county website)
Localities in this Region
- South Carolina
- South Carolina
Other Regions, Features and Areas that Intersect
Atlantic OceanOcean
North America PlateTectonic Plate
- Charleston DomainDomain
- Newark Group BasinsBasin
- West Atlantic BasinBasin
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
Quick NavTopCommoditiesMineral ListRock TypesFossilsOther DatabasesLinksLocalities in RegionOther Regions
Charleston County, South Carolina, USA