Question:  Lost Cove is a ghost town located above a river that is how long?

full_context: Document 1: Roan Mountain (Roan Highlands): Roan Mountain is the highpoint of the Roan-Unaka Range of the Southern Appalachian Mountains, located in the Southeastern United States. The mountain is clad in a dense stand of Southern Appalachian spruce-fir forest, and includes the world's largest natural rhododendron garden, and the longest stretch of grassy bald in the Appalachian range. The Cherokee National Forest and Pisgah National Forest converge atop the mountain, with Roan Mountain State Park located near its northern base. The Appalachian Trail crosses most of the Roan's crest. The Roan High Knob Shelter is the highest backcountry shelter on the entire 2174 mi trail.
Document 2: Cottageville, West Virginia: Cottageville (also Moores Mill, Rhodess Mill, or Wrights Mill) is an unincorporated community in western Jackson County, West Virginia, United States. It lies along West Virginia Route 331 northwest of the city of Ripley, the county seat of Jackson County. Established in 1858, its elevation is 594 feet (181 m). Although Cottageville is unincorporated, it has a post office, with the ZIP code of 25239. It also is the site of the annual Jackson County Junior Fair. Michael Coleman, a well known early Indian fighter, was killed and buried in the area, according to a historical marker placed by the state of WV. The wooden Grist Mill located here since the 1840s burned to the ground in the summer of 1965. Its foundation stones remain. It had remained in operation full-time until 1930, part-time until 1937. Cottageville was a commercial center with a bank, newspaper, tannery, blacksmith, several stores, a railroad station on the B & O and many other businesses in the early part of the twentieth century. Its heyday faded with the closing of the mill and the improvement of roads in the county. The B & O pulled up its tracks to the county seat, Ripley, in the mid-nineteen-sixties. Less than a mile from the old town, the county operated what folks called the "poor farm," an early version of a welfare commune. That closed in the thirties with the New Deal. That land is now the Jackson County Junior Fairgrounds.
Document 3: Linville Gorge Wilderness: The Linville Gorge Wilderness ("The Grand Canyon of North Carolina") is the third largest wilderness area in North Carolina (after Shining Rock Wilderness and Joyce-Kilmer Slickrock Wilderness) and one of only two wilderness gorges in the Southern United States (along with Bald River Gorge Wilderness in Tennessee). Maintained by the United States Forest Service, it comprises 11,786 acres (47.7 km) around the Linville River, and is situated inside the Pisgah National Forest. The river is approximately 1,400 feet (400 m) below the ridge, thus hiking in and out of the Gorge is challenging and enjoyable for those who like serious hiking. The plant and animal community is extremely diverse, with a dense hardwood/pine forest and a wide variety of smaller trees and other plants as well as bear, fox, raccoon, trout, grouse, wild turkey, vultures, owls, hawks, copperheads, and timber rattlesnakes.
Document 4: Nolichucky River: The Nolichucky River is a 115 mi river that flows through Western North Carolina and East Tennessee, in the southeastern United States. Traversing the Pisgah National Forest and the Cherokee National Forest in the Blue Ridge Mountains, the river's watershed is home to some of the highest mountains in the Appalachians, including Mount Mitchell, the highest point in the eastern United States. The river is a tributary of the French Broad River, and is impounded by Nolichucky Dam near Greeneville, Tennessee.
Document 5: Loyston, Tennessee: Loyston is a ghost town in Union County, Tennessee, United States, that was inundated by the waters of the Clinch River after the completion of Norris Dam in 1936. Established in the early 19th century around a foundry built by its namesake, John Loy, over subsequent decades the community's location along State Highway 61 helped it grow into a trading center for local farmers. By the time the Tennessee Valley Authority (TVA) began making plans to build Norris Dam in the early 1930s, Loyston had a population of approximately 70 residents, and consisted of a post office and several small businesses.
Document 6: Lost Cove, North Carolina: Lost Cove is a ghost town in Yancey County, North Carolina. The town was first settled by Morgan Bailey shortly before the Civil War. The town is located in the Poplar Gorge above the Nolichucky River on the Tennessee-North Carolina border. Originally, the settlement was supported by logging, railroading, moonshine-making, and farming industries. Several factors contributed to the town's abandonment including rough terrain, isolation, and the end of passenger railroad stops. In 1957, the last family left Lost Cove, leaving it deserted. Fires in 2007 burned most of the structures down. Today, the town is still accessible to those willing to hike. Visitors to the area come to see the cemetery, Swin Miller's rusted Chevy still laying in a ditch, and the three houses that remain.
Document 7: French Broad River: The French Broad River flows 218 mi from near the town of Rosman in Transylvania County, North Carolina, into the state of Tennessee. Its confluence with the Holston River at Knoxville is the beginning of the Tennessee River. The river flows through the counties of Transylvania, Buncombe, Henderson, and Madison in North Carolina, and Cocke, Jefferson, Sevier, and Knox in Tennessee, and drains large portions of the Pisgah National Forest and the Cherokee National Forest.
Document 8: Hall Cabin: The Hall Cabin, also known as the J. H. Kress Cabin is a historic log cabin in Great Smoky Mountains National Park, about 15 mi from Fontana, North Carolina. The cabin is a rectangular split-log structure 24 ft wide and 17 ft deep, with a porch spanning its front. The gable ends of the roof are sheathed in board-and-batten siding. It was built by a man named Hall in 1910, and underwent some remodeling around 1940 when J. H. Kress used it as a hunting lodge. It is located in the drainage of Hazel Creek, an area which historically had a small population and was abandoned after the construction of Fontana Lake and the national park. It is the only structure remaining in its immediate vicinity.
Document 9: North River (Tennessee): The North River of Tennessee is a major tributary of the Tellico River. It rises in the Unicoi Range, which are geologically related to the Smoky Mountains to the north, in Monroe County, Tennessee inside Cherokee National Forest. Its entire course is located in a very scenic, very isolated area; for the vast majority of its length it is parallel by Forest Road 217, also called North River Road, managed by the Forest Service of the United States Department of Agriculture. It flows very roughly east to west. There is a Forest Service campground located near its confluence with the Tellico, which is located upstream and opposite that of the Tellico's other major tributary, the Bald River.
Document 10: Cades Cove: Cades Cove is an isolated valley located in the Tennessee section of the Great Smoky Mountains National Park, USA. The valley was home to numerous settlers before the formation of the national park. Today Cades Cove, the single most popular destination for visitors to the park, attracts more than two million visitors a year because of its well preserved homesteads, scenic mountain views, and abundant display of wildlife. The Cades Cove Historic District is listed on the National Register of Historic Places.
Document 11: Cannel City, Kentucky: Cannel City is an unincorporated community in Morgan County, Kentucky, United States. It lies along Route 191 south of the city of West Liberty, the county seat of Morgan County. In 1901, the Ohio and Kentucky railway tracks were laid through the region and thrived until the Cannel Coal Company's resources were depleted and forestry resources of the Licking River played out at the same time. On November 1, 1933, the last train trip of the Ohio and Kentucky Junction Railroad-Cannel City Line was made and the track was scrapped. During the golden years, there were several grocery stores, a hardware store, post office, mine, bank, blacksmith and an elegant hotel named The DeLancy. Also standing at over 100 years old is the well used by the trains to put water into their engines. Lost over the years was a train depot at the end of Highway 134, where it currently intersects with Highway 191. At one time, the area had a larger population and count of buildings than the present-day county seat West Liberty. After the mine closed, the area still partially thrived during the times after the Great Depression.
Document 12: Judson, Swain County, North Carolina: Judson was a small town in Swain County, North Carolina. It was submerged when the Fontana Dam was built, creating the Fontana Lake reservoir. Some structures can be visited when the lake is at its yearly low.
Document 13: Oconaluftee (Great Smoky Mountains): Oconaluftee is the name of a river valley in the Great Smoky Mountains of North Carolina, located in the Southeastern United States. Formerly the site of a Cherokee village and Appalachian community, the valley's bottomland is now home to the main entrance to the North Carolina side of the Great Smoky Mountains National Park.
Document 14: Mills River (North Carolina): The Mills River is located in Transylvania and Henderson counties, North Carolina, United States is a tributary of the French Broad River. The river flows out of the Pisgah Ranger District of the Pisgah National Forest in two forks: the North Fork, which drains the slopes just south of the Blue Ridge Parkway between Asheville and Mount Pisgah, and the South Fork, which drains the area of the Pisgah Ranger District just east of the Cradle of Forestry in America, including the slopes of Black Mountain. The Mills River flows into the French Broad River northwest of Hendersonville between NC 191 and Interstate 26.
Document 15: Ghost Town Village: Ghost Town Village (formerly "Ghost Town in the Sky) is a Wild West-themed amusement park in Maggie Valley, North Carolina, United States that is currently on hiatus. An unusual aspect of this park is that it is located atop a mountain which can only be accessed by visitors via a 3370 ft chair lift or an inclined funicular railway. These start at the parking area beside Jonathan Creek at an elevation of 3150 ft , climbing to the lower level of the park at 4400 ft , a climb of 1250 ft . The recreated "Ghost Town" sits at 4600 ft , with the highest elevation in the park being about 4650 ft . The park is located on a ridge extending from Buck Mountain border, an extension of the Cataloochee Divide, to the Great Smoky Mountains National Park. The park's entrance is located on U.S. Highway 19, the main road through the town. Ghost Town is promoted as "North Carolina's mile-high theme park."
ground_truth: 115 mi