Question: While the Genesee River is a tributary of Lake Ontario, Schuylkill Canal is a commercial waterway in and along which river?

Context paragraphs:
Riverton, New York: Riverton, New York was a planned community built in 1973 in the town of Henrietta, New York, along the Genesee River.  Riverton was seventh of the thirteen communities receiving Federal guarantee assistance from HUD as part of their New Communities Program created by the Urban Growth and New Community Development Act of 1970.  $12 million was earmarked for the community.  Riverton was supposed to encompass a 2335 acre land area bordered on the north by the New York State Thruway, on the west by the Genesee River, on the east by East River Rd., and on the south by the Rush-Henrietta town line, with some development continuing east along Erie Station Rd.  Original plans called for construction to occur for a 16-year period and eventually house over 25,000 people, with the community including an 18-hole golf course, 12 swimming pools, 3 artificial lakes, a marina on the Genesee, and commercial and industrial centers.  However, only a small portion of this was built along Scottsville-West Henrietta Rd.  Created as part of the community were Riverton Knolls, a moderately priced townhouse subdivision, the Riverton Golf Club, a small 9-hole golf course, and the Riverton Park, which included a playground, baseball diamond, river front benches, walking trail, and a volleyball court.  Also nestled in a bend in the Genesee was a 28 acre forested nature park.

Rochester and Suburban Railway: The Rochester and Suburban Railway can trace its roots back to the Rochester and Lake Ontario Railway which was formed in 1879 to construct a steam-powered railroad connecting Rochester at Portland Avenue with Sea Breeze on the shores of Lake Ontario.  The line was operated with enclosed "dummy" steam locomotives so as not to frighten horses as they operated along city streets.  The railroad was leased by the Rochester and Irondequoit Railroad in 1893, which in turn built its own electric streetcar line along St. Paul Boulevard to the Summerville lakeside community in Irondequoit.  The electric line only operated in the summer months, and connected to a ferry boat that transported passengers across the Genesee River to Charlotte.  The opening of the Stutson Street Bridge in 1927 forced the termination of ferry service, and the railroads entered receivership soon after.

Manayunk Canal Towpath: The Manayunk Canal Towpath is a trail that runs along the Schuylkill River Canal in Manayunk, Pennsylvania, a northwest section of Philadelphia.  The Towpath parallels the Manayunk Canal and the Schuylkill River.  The Towpath is accessible from Fairmount Park to the East and from the Schuylkill River Trail to the West.  As the Towpath runs through heavy industry and rural-like settings, its surface varies between boardwalk, gravel, and pavement.  This makes the Towpath ideal for running, walking, and cycling.  Fishing in the Schuylkill Canal along the Manayunk Towpath is a favorite past time for visitors and residents alike.

New York State Route 19: New York State Route 19 (NY 19) is a north–south state highway in Western New York in the United States.  It is the longest state highway in that region, and the only other one besides NY 14 to completely transect the state from the Pennsylvania state line to the shore of Lake Ontario.  It continues south into Pennsylvania as Pennsylvania Route 449 (PA 449) and ends at an intersection with the Lake Ontario State Parkway just south of the lakeshore in Hamlin.  NY 19 does not serve any major cities or metropolitan areas and remains a two-lane rural road for almost its entire length.  However, it follows the Genesee River for much of its lower length, and offers easy access to the gorges of Letchworth State Park midway along its route.

Schuylkill Canal Association: The Schuylkill Canal Association (SCA) is a non-governmental organization that maintains the Oakes Reach and Lock #60 of the Schuylkill Canal as a public recreation area and historical site.  Organized in 1982 as the Schuylkill Canal Advisory Board, the Association, in cooperation with Upper Providence Township, Montgomery County, and the Commonwealth of Pennsylvania, maintains the canal reach, associated structures, parks and trails.  The area extends along the canal and left bank of the Schuylkill River, from Mont Clare past Port Providence.  The area makes up a large part of the Schuylkill Navigation Canal, Oakes Reach Section Historic District (#88000462).

Genesee Valley Park: Genesee Valley Park is located in the south side of Rochester, New York along the shores of the Genesee River.  The New York State Barge Canal (the currently in-use portion of the Erie Canal) crosses the Genesee River within the park.  The University of Rochester is located near the park's north entrance.

Genesee River: The Genesee River is a tributary of Lake Ontario flowing northward through the Twin Tiers of Pennsylvania and New York in the United States.

East Falls, Philadelphia: East Falls is a neighborhood in the Northwest section of Philadelphia, Pennsylvania, United States on the east or left bank side of the now submerged Schuylkill River cataracts, the 'Falls of the Schuylkill' that became submerged as the Schuylkill Canal and Fairmount Water Works projects were completed in 1822.  The East Falls community is located adjacent to Germantown, Roxborough, Allegheny West, and Nicetown-Tioga neighborhoods.  East Falls is also adjacent to Wissahickon Valley Park.  The neighborhood runs along a stretch of Ridge Avenue that is only a few miles long, along the banks of the Schuylkill River then extends northeast to Wissahickon Avenue.  East Falls overlooks the multi-use recreational path of Fairmount Park along Kelly Drive, and is desirable for its central location, an easy commute to Center City, with easy access to several major roadways and public transportation.  East Falls continues to develop, with new housing, retail space and recreation centers in production.  It features three streets in proximity with the word "Queen" in them (Queen Lane, New Queen Street, and Indian Queen Lane), two train stations, a number of bars and restaurants, a small Korean grocer, illustrious mansions as well as some recently renovated housing that continues to increase in value.

Schuylkill Canal: Schuylkill Canal is the common, but technically inaccurate, name for the Schuylkill Navigation, a 19th-century commercial waterway in and along the Schuylkill River in the U.S. state of Pennsylvania.  The "canal" was actually a system of interconnected canals and slack-water pools in the river, which is called a navigation.  Chartered in 1815, the Schuylkill Navigation opened in 1825 to provide transportation and water power.  At the time, the river was the least expensive and most efficient method of transporting bulk cargo, and the eastern seaboard cities of the U.S. were experiencing an energy crisis due to over forestation.  It fostered the mining of anthracite coal as the major source of industry between Pottsville and eastern markets.  Along the tow-paths, mules pulled barges of coal from Port Carbon through the water gaps to Pottsville; locally to the port and markets of Philadelphia; and some then by ship or through additional New Jersey waterways, to New York City markets.

Wood Creek: Wood Creek in Central New York State flows westward from the city of Rome, New York to Oneida Lake.  Its waters flow ultimately to Lake Ontario, which is the easternmost of the five Great Lakes.  Wood Creek is less than 20 mi long, but has great historical importance.  Wood Creek was a crucial, fragile link in the main 18th and early 19th century waterway connecting the Atlantic seaboard of North America and its interior beyond the Appalachian Mountains.  This waterway ran upstream from the Hudson River (at Albany, New York) along the Mohawk River.  Near present day Rome, the Mohawk River is about one mile from Wood Creek across dry land.  In the 18th century, cargo and boats were portaged between the Mohawk and Wood Creek; the crossing was called the "Oneida Carry".  In 1797, the Rome Canal was completed and finally established an all-water route.  The waterway then followed a downstream run along Wood Creek to the east end of Oneida Lake.  After a 20 mile crossing to the west end of the lake, the waterway entered the Oswego River system.  This system led either to the Lake Ontario port at Oswego, or further westward along the Seneca River.

Supporting paragraphs: Genesee River Schuylkill Canal
Answer: Schuylkill River