That is the "creek" you cross at the bottom of the property -- the head waters of the Green River. It had been raining on Thursday and Friday. The picture was taken on Saturday, hence, the water is up. Another 12 miles to the east, and it is flowing through the Green River Gorge you cross on I-26 N before getting into Hendersonville. The Green River Gorge is the first big valley to the northeast of the southern Appalachians' eastern continental divide. The waters flow into Lake Summit, then eventually into the Broad River, through Columbia, and ultimately, into the Cooper River near Charleston harbor, where the Cooper River and Ashley River come together to form the Atlantic Ocean.