The Allegheny River is a 325-mile-long (523 km) tributary of the Ohio River that is located in western Pennsylvania and New York in the United States. It runs from its headwaters just below the middle of Pennsylvania's northern border, northwesterly into New York, then in a zigzag southwesterly across the border and through Western Pennsylvania to join the Monongahela River at the Forks of the Ohio at Point State Park in Downtown Pittsburgh, Pennsylvania.
The Smyrna River is a 7.3-mile-long (11.7 km) river in central Delaware in the United States.
Brandywine Creek is a tributary of the Christina River in southeastern Pennsylvania and northern Delaware in the United States. The Lower Brandywine is 20.4 miles (32.8 km) long and is a designated Pennsylvania Scenic River with several tributary streams. The East Branch and West Branch of the creek originate within 2 miles (3 km) of each other on the slopes of Welsh Mountain in Honey Brook Township, Pennsylvania, about 20 miles (32 km) northwest of their confluence.
Red Clay Creek is a 12.7-mile-long (20.4 km) tributary of White Clay Creek, running through southeastern Pennsylvania and northern Delaware in the United States. As of 2000, portions of the creek are under wildlife habitat protection.
The East Branch Delaware River is one of two branches that form the Delaware River. It is approximately 75 mi (121 km) long, and flows through the U.S. state of New York. It winds through a mountainous area on the southwestern edge of Catskill Park in the Catskill Mountains for most of its course, before joining the West Branch along the northeast border of Pennsylvania with New York. Much of it is paralleled by State Route 30.
The West Branch Delaware River is one of two branches that form the Delaware River. It is approximately 90 mi (144 km) long, and flows through the U.S. states of New York and Pennsylvania. It winds through a mountainous area of New York in the western Catskill Mountains for most of its course, before joining the East Branch along the northeast border of Pennsylvania with New York. Midway or so it is empounded by the Cannonsville Dam to form the Cannonsville Reservoir, both part of the New York City water supply system for delivering drinking water to the City.
The Olentangy River is a 97-mile-long (156 km) tributary of the Scioto River in Ohio, United States.
The Nanticoke River is a tributary of the Chesapeake Bay on the Delmarva Peninsula. It rises in southern Kent County, Delaware, flows through Sussex County, Delaware, and forms the boundary between Dorchester County, Maryland and Wicomico County, Maryland. The tidal river course proceeds southwest into the Tangier Sound, Chesapeake Bay. The river is 64.3 miles (103.5 km) long. A 26-mile ecotourism water trail running along the River was set aside in July 2011 by Delaware state and federal officials, contiguous with a 37-mile water-trail extending through Maryland to the Chesapeake Bay.
The Sassafras River is a tributary of the Chesapeake Bay on the Delmarva Peninsula in the United States. It is approximately 22 miles (35 km) long and starts in western New Castle County, Delaware, and along the boundary between Cecil County, Maryland on the north and Kent County, Maryland on the south. It rises southwest of Middletown, Delaware and ends at the Chesapeake Bay in a wide mouth between Howell Point near Betterton, Maryland and Grove Point on Grove Neck.
Marshyhope Creek is a 37.0-mile-long (59.5 km) tributary of the Nanticoke River on the Delmarva Peninsula. It rises in Kent County, Delaware, and runs through Caroline County, Maryland, and Dorchester County, Maryland.
Chester Creek is a 9.4-mile-long (15.1 km) tributary of the Delaware River in Delaware County, Pennsylvania, in the United States.
Big Walnut Creek starts near Mount Gilead, Ohio in Morrow County. It flows south to eastern Delaware County and parallels Alum Creek. It passes to the east of Sunbury and into Hoover Reservoir, which then crosses into Franklin County. From the dam outflow in Westerville the creek flows through Gahanna and Whitehall. Near Obetz it is joined by its principal tributaries Alum Creek and Blacklick Creek at the Three Creeks Columbus Metro Park. It flows through southern Franklin County and joins the Scioto River near the Franklin-Pickaway Counties line at 39°47′57″N83°00′34″W.
Big Piney Creek is a river located in Ozark National Forest in the state of Arkansas. It is a tributary of the Arkansas River and therefore part of the Mississippi River watershed. Managed by the United States Forest Service, it flows for 70.8 miles (113.9 km) through Pope, Johnson and Newton counties. The headwaters of the creek are in a rugged, remote area just east of Arkansas Route 21 south of the community of Fallsville and the mouth of the creek empties into Lake Dardanelle on the Arkansas River.
Charlotte Creek is a river located in Delaware County, New York. Charlotte Creek borders the southern border of Otsego County, New York for a few miles near the mouth. The creek converges with the Susquehanna River by Emmons, New York.
Read Creek is a river in Delaware County, New York. It drains Merrick Pond and flows east until it meets the unnamed creek that drains Trask Pond, then begins flowing south receiving its other tributaries before converging with the East Branch Delaware River northeast of Fishs Eddy.
Falls Creek is a river in Delaware County in the state of New York. It begins east of the hamlet of Meredith and flows in a generally southeast direction before flowing into the West Branch Delaware River north-northeast of the village of Delhi. Watauga Falls is a waterfall located on the creek.
Snake Creek is a river in Delaware County, New York. It flows into Cadosia Creek in Cadosia.
Perkins Pond is a small lake southwest of Rock Rift in Delaware County, New York. It drains southwest via an unnamed creek that flows into Cadosia Creek, which flows into the East Branch Delaware River. Merrick Pond is located east of Perkins Pond.
Beaver Creek is a 2.62 mi (4.22 km) long 2nd order tributary to Brandywine Creek in New Castle County, Delaware.
