Question: How far is the protected area along the river near Babcock State Park?

Context paragraphs:
The Pages Conservation Park: The Pages Conservation Park is a protected area in the Australian state of South Australia located about 25 km south-east of Cape Jervis and about 98 km south south-west of Adelaide city centre.  It consists of the island group known as The Pages and adjoining waters.  The protected area status exists to protect the island group’s use as a breeding area by Australian sea lions and sea birds.  The proclamation as The Pages Conservation Park in 1972 after the enactment of the "National Parks and Wildlife Act 1972" replaced the island group’s previous protected status as a Fauna Conservation Reserve proclaimed under the "Crown Lands Act 1929-1967" in 1967.  The boundary of the conservation park was extended 3 nmi seawards during the 1990s in order to control berleying associated with both shark cage diving and shark fishing.  The conservation park is classified as an IUCN Category IA protected area.

Great Australian Bight Marine National Park: Great Australian Bight Marine National Park is a protected area in the Australian state of South Australia located 918 km west of the state capital of Adelaide.  The national park was proclaimed under the "National Parks and Wildlife Act 1972 (SA)" by the South Australian Government on 26 September 1996 principally to protect the calving waters of the Southern right whale and the Australian sea lion populations.  It consists of two sections occupying the ocean immediately adjoining the coastline up to a distance of 3 nmi and extending from the Western Australia border in the west to a locality known as the Tchalingaby Sandhills in the east.  The gap between the two sections is also a protected area known as the Great Australian Bight Marine Park Whale Sanctuary which was proclaimed on 22 June 1995 under the "Fisheries Act 1982 (SA)".  The national park is also part of the group of marine protected areas which are located together in waters within Australian and South Australian jurisdictions within the Great Australian Bight and which is collectively known as the Great Australian Bight Marine Park.  Since late 2012, the national park and the whale sanctuary have also been within the boundaries of the Far West Coast Marine Park.

Beury Mountain Wildlife Management Area: Beury Mountain Wildlife Management Area is located on 9232 acre near Babcock State Park and New River Gorge National River in Fayette County, West Virginia.  Beury Mountain's sloping terrain is covered with mixed hardwoods and oak-hickory second growth woodlands overlooking New River Gorge.  Camping is not allowed at Beury Mountain WMA, but is available at nearby Babcock State Park.

New River Gorge National River: The New River Gorge National River is a unit of the United States National Park Service designed to protect and maintain the New River Gorge in southern West Virginia.  Established in 1978, the NPS-protected area stretches for 53 mi from just downstream of Hinton to Hawks Nest State Park near Ansted.

Babcock State Park: Babcock State Park is a state park located along the New River Gorge on 4127 acre wooded in Fayette County, West Virginia.  It is located approximately 20 miles away from the New River Gorge Bridge.

Secret Rocks Nature Reserve: Secret Rocks Nature Reserve is a private protected area located in South Australia about 36 km east of the town of Kimba on the Eyre Peninsula in the state’s Far North region.  The nature reserve has protected area status due being to the subject of a native vegetation heritage agreement created in 2007 under the "Native Vegetation Act 1991 (SA)" where its owner, Ecological Horizons Pty Ltd, has agreed to protect the property’s native vegetation in perpetuity.  The nature reserve is bounded on its east side by the Ironstone Hill Conservation Park.  It is classified as an IUCN Category III protected area.

Maputaland Marine Protected Area: The Maputaland Marine Protected Area, also known as the Maputaland Marine Reserve, is a marine protected area (MPA) along the Indian Ocean coastline of northern KwaZulu-Natal, South Africa.  The Maputaland MPA, which forms part of iSimangaliso Wetland Park, extends a distance of 3 nmi seawards from the coast between the Mozambique border and Gobey's Point near Lake Sibhayi.  To the south it abuts on the St Lucia Marine Protected Area.  For the biodiversity, see "Sodwana Bay".

Warrenben Conservation Park: Warrenben Conservation Park is a protected area located in the Yorke Peninsula of South Australia about 12 km north-east of Marion Bay.  The conservation park which held protected area status under previous legislation was re-proclaimed under the "National Parks and Wildlife Act 1972" in 1972.  The following statement of significance appears in the conservation park’s management plan:Together with nearby Innes National Park, it conserves a substantial proportion of the natural habitat remaining on southern Yorke Peninsula.  The park comprises an area of undulating limestone plains and low, stabilised dunes that remain well vegetated with mallee and tea-tree scrub and some sheoak woodlands.  It provides habitat for a number of threatened species including the nationally and state vulnerable Annual Candles, state rare Goldsack’s Leek-orchid ("Prasophyllum goldsackii"), and the nationally and state vulnerable Malleefowl and Western Whipbird ("Psophodes nigrogularis leucogaster").  The conservation park is classified as an IUCN Category Ia protected area.

Hemis National Park: Hemis National Park (or Hemis High Altitude National Park) is a high altitude national park in the eastern Ladakh region of the state of Jammu and Kashmir in India.  World famous for being the best place to see the snow leopard in the wild, it is believed to have the highest density of snow leopards of any protected area in the world.  It is the only national park in India north of the Himalayas, the largest notified protected area in India (and thus the largest national park of India), and is the second largest contiguous protected area after the Nanda Devi Biosphere Reserve and surrounding protected areas.  The park is home to a number of species of endangered mammals including the snow leopard.  Hemis National Park is India's only protected area inside the Palearctic ecozone, outside the Changthang Wildlife Sanctuary northeast of Hemis, and the proposed Tso Lhamo Cold Desert Conservation Area in North Sikkim.

Brownhill Creek Recreation Park: Brownhill Creek Recreation Park is a protected area located about 8 km south of the Adelaide city centre in City of Mitcham along part of the course of the Brown Hill Creek.  The recreation park was proclaimed under the "National Parks and Wildlife Act 1972" in 1972 to "provide recreation opportunities for the Adelaide and eastern metropolitan region and to conserve remnant aged river red gums and the riparian zone habitat".  The land previously subject to protected area status as a "National Pleasure Resort" since 1915.  The recreation park is classified as an IUCN Category III protected area.

Supporting paragraphs: Babcock State Park New River Gorge National River
Answer: 53 mi