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 together—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 Sacandaga River is a 64-mile-long (103 km) river in the northern part of New York in the United States. Its name comes from the Native American Sa-chen-da'-ga, meaning "overflowed lands".
The Chippewa River is a stream in the U.S. state of Michigan that runs 91.8 miles (147.7 km) through the central Lower Peninsula. The Chippewa is a tributary of the Tittabawassee River and is thus part of the Saginaw River drainage basin. The river is named after the Chippewa people.
The Blackwater River is a 37.5-mile-long (60.4 km) river located in central New Hampshire in the United States. It is a tributary of the Contoocook River, part of the Merrimack River watershed.
Saddleback Mountain is a mountain located in Piscataquis County, Maine.
The Fisher River is a tributary of the Kootenay River in the U.S. state of Montana. The Fisher River properly begins at the confluence of its two main tributaries, the Pleasant Valley Fisher River and the Silver Butte Fisher River. Of the two tributaries, the Pleasant Valley Fisher River is the larger and is sometimes considered part of the Fisher River proper. A variant name of the Fisher River is Pleasant Valley River, and a variant name of the Pleasant Valley Fisher River is Fisher River.
The East Branch Mattawamkeag River is a tributary of the Mattawamkeag River in Aroostook County, Maine. From its source in Dudley, the river runs 36 miles (58 km) south and southeast to its confluence with the West Branch Mattawamkeag River in Haynesville, about 10 miles (16 km) west of the Canada–United States border.
The East Branch Pleasant River is a 6.2-mile-long (10.0 km) tributary of the Pleasant River in the U.S. state of Maine. The Pleasant River is a tributary of the Androscoggin River, which flows southeast to the tidal Kennebec River and the Atlantic Ocean.
The East Branch Pleasant River is a 32.4-mile-long (52.1 km) tributary of the Piscataquis River in Piscataquis County, Maine. From its source in Shawtown, the river runs about 19 miles (31 km) generally southeast to Upper Ebeemee Lake, then about 13 miles (21 km) south through Ebeemee Lake to its confluence with the West Branch to form the Pleasant River in Brownville.
The Middle Branch Pleasant River is a tributary of the Piscataquis River in Piscataquis County, Maine. From the outflow of Middle Branch Pond in Maine Township 5, Range 9, WELS, the river runs 11.4 miles (18.3 km) southeast to its confluence with the East Branch in Brownville. The East Branch runs about 1.5 miles (2.4 km) further south, joining with the West Branch to form the main stem of the Pleasant River.
The West Branch Pleasant River is a tributary of the Pleasant River in Washington County, Maine. From the confluence of Branch Brook and Bells Brook in southeast Columbia, the river meanders 2.3 miles (3.7 km) south to the estuary of the Pleasant River at Addison.
The Feather Headwaters are 3 watersheds totaling 3,450 sq mi (8,900 km2) and which drain to Lake Oroville. The North Fork Feather Watershed is 1,090 sq mi (2,800 km2)—including the West Branch drainage of about 282.5 sq mi (732 km2). The East Branch North Fork Feather Watershed is 1,010 sq mi (2,600 km2), and the Middle Fork Feather Watershed is 1,350 sq mi (3,500 km2)—including the South Fork drainage of about 132 sq mi (340 km2). Headwaters drainage is impaired by the Palermo Canal at Oroville Dam, the Hendricks Canal at the West Branch Feather River, and the Miners Ranch Canal at the South Fork's Ponderosa Reservoir. Additionally, the Pacific Gas and Electric Company releases Upper Feather water into the Hyatt Generating-Pumping Plant for hydroelectric generation during daily peak demand.
The Tamarack River is an 8.8-mile-long (14.2 km) tributary of the Middle Branch Ontonagon River in Iron and Gogebic counties on the Upper Peninsula of Michigan in the United States. The stream source is the outflow from Tamarack Lake. Via the Middle Branch of the Ontonagon River, its water flows north to the Ontonagon River and ultimately to Lake Superior.
The West Branch Pocwock Stream is a tributary of the Pocwock River flowing in:
The South Branch Grass River flows into the Grass River in Clare, New York. The South Branch Grass River and Middle Branch Grass River combine here and become Grass River.
