The Potomac River is a major river in the Mid-Atlantic region of the United States that flows from the Potomac Highlands in West Virginia to the Chesapeake Bay in Maryland. It is 405 miles (652 km) long, with a drainage area of 14,700 square miles (38,000 km2), and is the fourth-largest river along the East Coast of the United States. More than 6 million people live within its watershed.
The Little Bighorn River is a 138-mile-long (222 km) tributary of the Bighorn River in the United States in the states of Montana and Wyoming. The Battle of the Little Bighorn, also known as the Battle of the Greasy Grass, was fought on its banks on June 25–26, 1876, as well as the Battle of Crow Agency in 1887.
The Feather River is the principal tributary of the Sacramento River, in the Sacramento Valley of Northern California. The river's main stem is about 73 miles (117 km) long. Its length to its most distant headwater tributary is just over 210 miles (340 km). The main stem Feather River begins in Lake Oroville, where its four long tributary forks join—the South Fork, Middle Fork, North Fork, and West Branch Feather Rivers. These and other tributaries drain part of the northern Sierra Nevada, and the extreme southern Cascades, as well as a small portion of the Sacramento Valley. The total drainage basin is about 6,200 square miles (16,000 km2), with approximately 3,604 square miles (9,330 km2) above Lake Oroville.
The South Branch Potomac River has its headwaters in northwestern Highland County, Virginia, near Hightown along the eastern edge of the Allegheny Front. After a river distance of 139 miles (224 km), the mouth lies east of Green Spring, Hampshire County, West Virginia, where it meets the North Branch Potomac River to form the Potomac.
The Root River flows for 80 miles (130 km) through the Driftless Area of southeastern Minnesota and is a tributary of the Upper Mississippi River. The Root River is formed by three branches, the North, South and Middle branches of the Root River and the South Fork Root River. It is an excellent river for canoeing and fishing. The gentle to moderate flowing river drops an average of 3.4 ft/mile from Chatfield, Minnesota, to its pour point in the Mississippi River into Navigation Pool 7 just south of La Crosse, Wisconsin and east of Hokah, Minnesota.
The Williams River is a tributary of the Gauley River, 33 miles (53 km) long, in east-central West Virginia, USA. Via the Gauley, Kanawha and Ohio Rivers, it is part of the watershed of the Mississippi River, draining an area of 132 square miles (342 km2) in a sparsely populated region of the southern Allegheny Mountains and the unglaciated portion of the Allegheny Plateau.
The Casselman River is a 56.5-mile-long (90.9 km) tributary of the Youghiogheny River in western Maryland and Pennsylvania in the United States. The Casselman River drains an area of 576 square miles.
The Lochsa River is in the northwestern United States, in the mountains of north central Idaho. It is one of two primary tributaries of the Middle Fork of the Clearwater River in the Clearwater National Forest. Lochsa is a Nez Perce word meaning rough water. The Salish name is Ep Smɫí, "It Has Salmon."
The Middle Fork John Day River is a 73-mile (117 km) tributary of the North Fork John Day River in the U.S. state of Oregon. It originates in the Blue Mountains of northeast Oregon in the Malheur National Forest near Austin and flows generally west to the North Fork about 18 miles (29 km) above Monument. The Middle Fork drainage basin covers about 806 square miles (2,090 km2).
The North Branch Marsh River is a 1.0-mile-long (1.6 km) tidal river in the town of Frankfort, Waldo County, Maine. It is a tributary of Marsh Bay, an arm of the tidal Penobscot River.
The South Branch Sunday River is a 2.5-mile-long (4.0 km) mountain stream in western Maine. It is a tributary of the Sunday River, which flows to the Androscoggin River and ultimately to the Kennebec River and the Atlantic Ocean.
The South Toe River is a river in Yancey County in Western North Carolina. The name Toe is taken from its original name Estatoe, pronounced 'S - ta - toe', a native American name associated with the Estatoe trade route leading down from the NC mountains through Brevard where there is a historical plaque with information that affirms the route, on into South Carolina where a village of the same name was located.
The Pocwock Stream is a tributary of the Saint John River, flowing in:
The East Branch Pockwock Stream is a tributary of the Pocwock River, flowing in Townships T17 R13 Wels and T16 R13 Wels, in the Aroostook County, in North Maine Woods, in Maine, the United States.
The Middle Branch Grass River flows into the Grass River in Clare, New York. The Middle Branch Grass River and South Branch Grass River combine together here and become the Grass River.
Pleasant Lake Stream flows into the Middle Branch Grass River near Newbridge, New York. The Pleasant Lake Stream and Blue Mountain Stream combine here to become Middle Branch Grass River.
Scotts Creek is a stream in Lake County, California, the largest tributary of Clear Lake. It rises to the south of Cow Mountain in the Mayacamas Mountains, then flows southeast towards Clear Lake, running through the fertile Scotts Valley and the seasonal Tule Lake before joining Middle Creek and flowing into the lake via Rodman Slough.
