Editing Calhoun County, South Carolina (section)

==Geography==
{{maplink|frame=yes|zoom=8|id=Q489377|type=shape-inverse|text=Interactive map of Calhoun County}}
According to the [[U.S. Census Bureau]], the county has a total area of {{convert|392.48|sqmi}}, of which {{convert|381.15|sqmi}} is land and {{convert|11.33|sqmi}} (2.89%) is water.<ref>{{Cite web |date=August 23, 2022 |title=2020 County Gazetteer Files – South Carolina |url=https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2020_Gazetteer/2020_gaz_counties_45.txt |access-date=September 10, 2023 |publisher=United States Census Bureau}}</ref> It is the second-smallest county in South Carolina by land area and smallest by total area.

Calhoun County includes features such as [[Lake Marion (South Carolina)|Lake Marion]], and the Congaree Bluffs, accessible publicly via the Congaree Bluffs Heritage Preserve.<ref>{{cite web |last1=County |first1=Calhoun |title=Congaree Bluffs Heritage Preserve |url=https://www.sctrails.net/trails/trail/congaree-bluffs |access-date=November 29, 2019}}</ref>

Calhoun County borders [[Congaree National Park]], the only Federally recognized Park which is a [[swamp]]. Astonishing biodiversity exists in Congaree National Park, the largest intact expanse of [[Old-growth forest|old growth]] [[Bottomland forest|bottomland hardwood forest]] remaining in the [[southeastern United States]]. Waters from the Congaree and Wateree Rivers sweep through the floodplain, carrying nutrients and sediments that nourish and rejuvenate this ecosystem and support the growth of national and state champion trees.<ref>{{cite web |title=Congaree National Park |url=https://www.nps.gov/cong/index.htm |website=Congaree National Park |publisher=NPS.GOV |access-date=November 29, 2019}} {{PD-notice}}</ref>  Although the park lies outside the boundaries of Calhoun County, much of the environment is similar.

The upper boundary for Calhoun County is the [[Congaree River]].

===State and local protected area===
* [[Congaree Bluffs Heritage Preserve]]<ref>{{Cite web |title=SCDNR Public Lands |url=https://www2.dnr.sc.gov/ManagedLands/ManagedLand/County |access-date=April 1, 2023 |website=www2.dnr.sc.gov}}</ref>

===Major water bodies===
* [[Big Beaver Creek (South Carolina)|Big Beaver Creek]]
* [[Congaree River]]
* [[Four Hole Swamp]]
* [[Lake Marion (South Carolina)|Lake Marion]]
* [[Little Limestone Creek (South Carolina)|Little Limestone Creek]]

===Adjacent counties===
* [[Richland County, South Carolina|Richland County]] – north
* [[Sumter County, South Carolina|Sumter County]] – northeast
* [[Clarendon County, South Carolina|Clarendon County]] – east
* [[Orangeburg County, South Carolina|Orangeburg County]] – south
* [[Lexington County, South Carolina|Lexington County]] – northwest

===Major highways===
* {{Jct|state=SC|I|26}}
* {{Jct|state=SC|US|21}}
* {{Jct|state=SC|US|176}}
* {{Jct|state=SC|US|601}}
* {{Jct|state=SC|SC|6}}
* {{Jct|state=SC|SC|33}}
* {{Jct|state=SC|SC|172}}
* {{Jct|state=SC|SC|267}}
* {{Jct|state=SC|SC|419}}

Calhoun County is part of the evacuation route for [[Tropical cyclone|hurricanes]] and [[coastal flooding]]. During such times, lane reversals are implemented, where [[Interstate 26 in South Carolina|Interstate 26]] goes in one direction (northwest).<ref>{{cite news |last1=Holdman |first1=Jessica |title=How Dorian evacuation SC highway lane reversals will work |agency=Post and Courier |url=https://www.postandcourier.com/hurricanewire/how-dorian-evacuation-sc-highway-lane-reversals-will-work/article_4e7c829e-cd15-11e9-b4c9-83f8276694b7.html |access-date=December 3, 2019}}</ref>