Oconee County is the westernmost county in the U.S. state of South Carolina. As of the 2020 census, the population was 78,607. Its county seat is Walhalla and its largest city is Seneca. Oconee County is included in the Seneca, SC Micropolitan Statistical Area, which is also included in the Greenville-Spartanburg-Anderson, SC Combined Statistical Area. South Carolina Highway 11, the Cherokee Foothills National Scenic Highway, begins in southern Oconee County at Interstate Highway 85 at the Georgia state line.
The Chattahoochee River forms the southern half of the Alabama and Georgia border, as well as a portion of the Florida and Georgia border. It is a tributary of the Apalachicola River, a relatively short river formed by the confluence of the Chattahoochee and Flint rivers and emptying from Florida into Apalachicola Bay in the Gulf of Mexico. The Chattahoochee River is about 430 miles (690 km) long. The Chattahoochee, Flint, and Apalachicola rivers together make up the Apalachicola–Chattahoochee–Flint River Basin. The Chattahoochee makes up the largest part of the ACF's drainage basin.
Lake Strom Thurmond, officially designated J. Strom Thurmond Reservoir at the federal level, and Clarks Hill Lake by the state of Georgia, is a man-made reservoir at the border between Georgia and South Carolina in the Savannah River Basin.
The Ocmulgee River is a western tributary of the Altamaha River, approximately 255 mi (410 km) long, in the U.S. state of Georgia. It is the westernmost major tributary of the Altamaha. It was formerly known by its Hitchiti name of Ocheese Creek, from which the Creek (Muscogee) people derived their name.
Lake Allatoona is a U.S. Army Corps of Engineers reservoir on the Etowah River in northwestern part of the State of Georgia. This reservoir is mostly in southeastern Bartow County and southwestern Cherokee County. A small portion is located in Cobb County near Acworth.
Jackson Lake is one of the oldest reservoirs in Georgia, United States, 44 miles (71 km) southeast of Atlanta in a rural area situated within parts of three counties. The Lloyd Shoals Dam was built in 1910 by Central Georgia Power Company, and electricity was originally generated for the city of Macon. Relative to others in the state, it is a smaller lake, which still generates electricity and provides a location for water sports, boating, wakeboarding and fishing. Jackson Lake is formed by the confluence of the Yellow, Alcovy and South rivers. Tussahaw Creek is also a significant tributary. Below the Lloyd Shoals Dam, the lake's outlet is the Ocmulgee River.
Lake Almanor is a large reservoir in northwestern Plumas County, northeastern California, United States. The reservoir has a capacity of 1,308,000 acre-feet (1.613×109 m3) and a maximum depth of about 90 feet (27 meters). It is formed by Canyon Dam on the North Fork of the Feather River, as well as Benner and Last Chance Creeks, Hamilton Branch, and various natural springs.
Lake Sinclair is a man-made lake in central Georgia near Milledgeville. It is operated by Georgia Power.
Lake Nottely is one of many reservoirs of the Tennessee Valley Authority. It is located entirely in Union County, Georgia in the United States and within the Chattahoochee-Oconee National Forests. Formed in 1942 by the damming of the Nottely River, Nottely Reservoir extends 20 miles (30 km) upstream to the town of Blairsville.
Lake Keowee is a man-made reservoir in the United States in the state of South Carolina. It was developed to serve the needs of power utility Duke Energy and public recreational purposes. It is approximately 26 miles (42 km) long, 3 miles (4.8 km) wide, with an average depth of 54 feet (16 m), and a shoreline measured at 300 miles (480 km) in total, and is approximately 800 feet (240 m) above sea level.
Lake Tugalo is a 597-acre (2.42 km2) reservoir with 18 miles (29 km) of shoreline located in the northeastern Georgia in Habersham and Rabun counties, but also lies partially in Oconee County, South Carolina. It is the fifth lake in a six-lake series created by hydroelectric dams operated by Georgia Power that follows the original course of the Tallulah River. The series starts upstream on the Tallulah River with Lake Burton followed by Lake Seed, Lake Rabun, Lake Tallulah Falls and Lake Tugalo, ending with Lake Yonah. The western arm of Lake Tugalo is filled by the Tallulah River and the eastern arm is filled by the Chattooga River. Georgia Power considers the lake full at a surface elevation of 891.5 feet (271.7 m).
Rock Hawk Effigy Mound is an archaeological site in Putnam County, Georgia, United States. It consists of thousands of pieces of quartzite laid in the shape of a large bird. Although it is most often referred to as a hawk, scholars do not know exactly what type of bird the original builders intended to portray.
Apalachia Dam is a hydroelectric dam on the Hiwassee River in Cherokee County, in the U.S. state of North Carolina. The dam is the lowermost of three dams on the river owned and operated by the Tennessee Valley Authority, which built the dam in the early 1940s to provide emergency power for aluminum production during World War II. While the dam is in North Carolina, an 8.3-mile (13.4 km) underground conduit carries water from the dam's reservoir to the powerhouse located 12 miles (19 km) downstream across the state line in Polk County, Tennessee. The dam and associated infrastructure were listed on the National Register of Historic Places in 2017.
Lake Chatuge is a man-made reservoir in Towns County, Georgia, and Clay County, North Carolina. It lies along the Hiwassee River created by the Chatuge Dam which finished construction in 1942. The lake is relatively shallow with depths of 30 feet (9.1 m) and reaches 144 feet (44 m) by the dam. Lake Chatuge is the highest major lake in the state of Georgia.
Jocassee Dam is an embankment dam on the Keowee River, straddling the border of Pickens and Oconee counties in South Carolina in the United States. The dam forms Lake Jocassee, which is fed by the Toxaway, Thompson, Horsepasture and Whitewater Rivers, and serves primarily for hydroelectric power generation and flood control. The dam and reservoir are part of the Keowee-Toxaway Hydroelectric Project, owned and operated by Duke Energy.
Chickasaw Point is a lakeside community and census-designated place (CDP) in Oconee County, South Carolina, United States. It was first listed as a CDP prior to the 2020 census. The population as of 2020 was 718.
Keowee Key is a lakeside community and census-designated place (CDP) in Oconee County, South Carolina, United States. It is considered part of the Salem community. It was first listed as a CDP prior to the 2020 census with a population of 2,716.
