Deep River is a tributary of the Cape Fear River, approximately 125 miles (200 km) long, in north central North Carolina in the United States. Deep River is a translation of the Indian name sapponah, "deep river". Paddling is popular on the river. Deep River is flanked by the planned Deep River State Trail and several other parks and preservation areas including Carbonton Dam Park, House in the Horseshoe Historic Site, Deep River Park and Deep River Camelback Truss Bridge, Endor Iron Furnace, White Pines Nature Preserve, Lockville Dam, Canal and Powerhouse, and Mermaid Point.