Lake Hartwell is a man-made reservoir bordering Georgia and South Carolina on the Savannah, Tugaloo, and Seneca Rivers. Lake Hartwell is one of the southeast's largest and most popular recreation lakes. The lake is created by Hartwell Dam located on the Savannah River seven miles (11 km) below the point at which the Tugaloo and Seneca Rivers join to form the Savannah. Extending 49mi up the Tugaloo and 45mi up the Seneca at normal pool elevation, the lake comprises nearly 56,000 acres (230 km²) of water with a shoreline of 962mi. The entire Hartwell "Project" contains 76,450 acres (309 km²) of land and water. I-85 bisects Hartwell Lake and makes the area easily accessible to visitors.