| River | County | Reach | Length (miles) | Description | Potential Classification | ORVs | Watershed (HUC Code 8) | Year Listed/ Updated | Other State |
|---|---|---|---|---|---|---|---|---|---|
| Calamus River | Garfield, Loup, Brown, Rock | Headwaters to confluence with North Loup River, excluding Virginia Smith Reservoir | 106 | Virginia Smith Reservoir extends approximately from about 5 1/2 miles NW of Burwell to just upstream of the confluence with Gracie Creek. The length of the reservoir is approximately 9 miles. | Cultural, Scenic, Wildlife | Lower North Loup | 1982/ 1995 | ||
| Dismal River | Blaine, Thomas | Headwaters (confluence of North and South Forks) to confluence with Middle Loup River | 72 | Within Sand Hill region, offers vistas of rolling prairie; trout fishery in upper reaches; highest-priority fishery resource (FWS) | Scenic | Dismal | 1982 | ||
| Long Pine Creek | Rock, Brown | Headwaters to confluence with Niobrara River | 42 | Important trout fishery; highest-priority fishery resource (FWS). | Fish | Middle Niobrara | 1982 | ||
| Middle Loup River | Blaine, Thomas, Hooker, Cherry | Headwaters (confluence of North and South Branches) to Milburn Diversion Dam | 104 | Good scenic qualities with occasional bluffs, scattered trees, good clear flow; highest-priority fishery resource (FWS); wintering bald eagles and small least tern nesting colony. | Fish, Scenic, Wildlife | Upper Middle Loup | 1982 | ||
| Niobrara River | Sioux | (seg 1): Entire segment within Agate Fossil Beds National Monument | 11 | Rare example of a free-flowing, perennial, prairie stream ecosystem. Nine species of native fish exist in stream. Protects fossil resources which represent golden age of mammals. | Scenic | Cultural, Fish, Geologic, Scenic, Wildlife | Niobrara Headwaters | 1982 | |
| Niobrara River | Boyd, Holt, Keya Paha, Rock, Brown, Cherry | (seg 3): State Highway 137 (ending of WSR segment) to Keya Paha River confluence. | 21 | Sometimes braided river with good flow meandering between high bluffs on either side of valley; many areas highly used for recreation, including excellent canoeing; wintering and migratory bald eagle populations, recent migratory use by whooping cranes, a federally listed endangered species; highest-priority fishery resource (FWS); many collecting sites for miocene, pliocene and some pleistocene vertebrates; high potential for cultural resources of National Register quality. | Cultural, Fish, Geologic, Historic, Recreational, Scenic, Wildlife, Other | Niobrara Headwaters | 1982 | ||
| Niobrara River | Knox, Holt, Boyd | (seg 4): Keya Paha River confluence to Eastern boundary of Boyd County (begining of WSR segment). | 40 | Classic Miocene and Pliocene stratiographic sections; area of great interest to vertebrate paleontologists; federally listed endangered least tern nesting colonies and possible whooping crane, also a federally listed endangered species, migratory use; high potential for cultural resources of National Register quality. | Cultural, Geologic, Scenic, Wildlife | Niobrara Headwaters | 1982 | ||
| Niobrara River | Boyd, Holt, Keya Paha, Rock, Brown, Cherry | (seg 2): Antelope Creek to Borman Bridge SE of Valentine (begining of WSR segment) | 112 | Sometimes braided river with good flow meandering between high bluffs on either side of valley; many areas highly used for recreation, including excellent canoeing; wintering and migratory bald eagle populations, recent migratory use by whooping cranes, a federally listed endangered species; highest-priority fishery resource (FWS); many collecting sites for miocene, pliocene and some pleistocene vertebrates; high potential for cultural resources of National Register quality. | Cultural, Fish, Geologic, Historic, Recreational, Scenic, Wildlife, Other | Niobrara Headwaters | 1982 | ||
| Snake River | Cherry, Sheridan | Headwaters to confluence with Niobrara River (omit Merrit Reservoir) | 115 | Scenic spring-fed river with some whitewater and falls in narrow valley; fragile ecosystem with pockets of deciduous trees mixed with cedars; mixed tall and short grass prairie in Sand Hills environment; good canoeing stream; abundant wildlife, wintering bald eagle population, a federally listed endangered species, unusual insect types; highest-valued fishery resource (FWS); high potential for cultural resources of National Register quality. | Fish, Recreational, Scenic, Wildlife | Snake | 1982 |
Last updated: November 30, 2016