Title: Rockcastle River
Content:  The Rockcastle River is a 54.8 mi river primarily in Rockcastle County, Kentucky, United States. It is a tributary of the Cumberland River and therefore, via the Ohio River, part of the Mississippi River watershed.
Title: Rockcastle River
Content:  The elevation is 888 ft. with the geolocation at (37.171, -84.296). The river has two forks, the Middle Fork, which forms in southern Jackson County, and the South Fork, which forms in Clay County. They meet at the Jackson County line and flow south, forming the southeast border of Rockcastle County. It makes up the border between Pulaski and Laurel counties before flowing into the Cumberland River. Due to the river carving into the Cumberland Plateau, many limestone and sandstone caves are formed. The river is used for recreational activities such as kayaking for sport through the rapid waters, and fishing for the many fish species.
Title: Rockcastle Creek
Content:  Rockcastle Creek is a stream in the U.S. state of West Virginia. Rockcastle Creek takes its name from a nearby rock formation, Castle Rock.
Title: Rockcastle River
Content:  In 1750 it was discovered by Dr. Thomas Walker and his exploring party, known as the Loyal Company. In his journal he named it the Lawless River, describing it as very steep and rocky. It was soon renamed by hunter Isaac Lindsey who founded Rockcastle County in 1767. Lindsey named the river after the castle-like rock formations.
Title: Rockcastle, Kentucky
Content:  Rockcastle, formerly Rock Castle, is an unincorporated community in Trigg County, Kentucky, United States.
Title: Rockcastle River Railway
Content:  The Rockcastle River Railway is a now-defunct line created by the Bond Foley lumber company to extract timber from Jackson County, Kentucky. It intersected the Louisville and Nashville Railroad line at East Bernstadt, Kentucky.
Title: Rockcastle County, Kentucky
Content:  Rockcastle County is a county located in the southeastern part of the U.S. state of Kentucky. As of the 2010 census, the population was 17,056. Its county seat is Mt. Vernon. The county was founded in 1810 and named for the Rockcastle River, which runs through it. The river, in turn, is named for its majestic rock cliffs. Rockcastle County is part of the Richmond–Berea, KY Micropolitan Statistical Area, which is also included in the Lexington-Fayette-Richmond-Frankfort, KY Combined Statistical Area.
Title: Rockcastle, Kentucky
Content:  A post office was in operation at Rockcastle from 1839 until 1915. The community derives its name from a nearby rock formation called Castle Rock. for strategic reasons rockcastle was burned during the war. Old Rockcastle now lies under lake barkley
Title: Rock Castle, West Virginia
Content:  Rock Castle (also Rockcastle) is an unincorporated community in southwestern Jackson County, West Virginia, United States. It lies along Rock Castle Road, south of the city of Ripley, the county seat of Jackson County. Its elevation is 705 feet (215 m). The community was named for a rock formation near the original town site.
Title: Rock Castle, Virginia
Content:  Rock Castle, Virginia is a populated locality in Goochland County, Virginia, United States of America. "Rock Castle", an estate listed on the National Register of Historic Places is in located in Rock Castle.

Question: In what country is Rockcastle River?
Answer: United States of America.
the United States of America.
America.
U.S.A.
USA.
U.S.
US.
the US.
the USA.
US of A.
the United States.
U. S. A.
U. S.
the States.
the U.S.
'Merica.
U.S.
United States.
'Murica.