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Quick moving clouds over the Ohio River. Historic town in background.
Aerial shot of power plant and industrial buildings on the bank of the Allegheny River in Springdale, a town 18 miles north of Pittsburgh in Allegheny County, Pennsylvania on a Fall day.
Sunny Summer day landscape of a recreational trail in a lush green forest beside the remains of a lock on the Hennepin Canal in Northern Illinois.
A lock on a man-made tributary diverting water from the natural river to the east  to overcome the annual variances in water depth on the river in order to maintain the shipping trade along the Mississippi River in the central United States.  This aerial view is just outside of St. Louis, Missouri on the Illinois side of the river.
aerial view of Missouri River valley above Jefferson City, MO, with Katy Trail crossing Cedar Creek, cloudy spring afternoon
Tug boat pushing barges loaded with coal on a river with train nearby.For similar images:
Aerial view of Waterway Locks
The historic Channahon Lock Number 7 on the I & M canal in morthern Illinois.
Remains of Lock Number 12 on the historic I and M Canal in Ottawa, Illinois, USA.
St Catherine's Lock near Guildford Surrey England Europe
Erie Canal, Lockport, New York, in the fall
Wide view of the Mississippi River shore, outside of Minneapolis. Minnesota, Along the river shore are power pylons and electrical wires that follow the river.  On both sides of the river is dense vegetation and in the sky above are clouds from an impending storm,\n\nTaken in Minneapolis. Minnesota, USA
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The small old canal to Cuyahoga river at the forest at Cuyahoga Valley National Park, Ohio, USA.
A view of the Galena River and scenic landscape in Northern Illinois, USA
Aerial View of Lift Lock
This drainage ditch in northern Iowa helps drain excess water from nearby fields. Properly drained fields contribute to more productive crops.
Aerial view of a hydroelectric power station on the river.
Sunny Summer landscape view of the Missouri River flowing by lush, hilly green farmland along the Katy Trail, near Jefferson City, Missouri.
A lock on a canal diverting water from the natural flow of the Mississippi River to the east  to overcome the annual variances in water depth on the river in order to maintain the shipping trade in the central United States.  This aerial view is just outside of St. Louis, Missouri on the Illinois side of the river.
The creek in the valley on a cloudy autumn day.
A beautiful view of a rolled earth dam in a rural area on a sunny day
St. Catharines, Canada.
River cruise boat entering Lock and Dam 22 on Mississippi river
The steep canal system of locks on the Kennet and Avon canal at Caen Hill in Wiltshire, UK - viewed from the air.
A view of the Delaware and Raritan State Park in Bound Brook, New Jersey.
Marina with boats on Memphremagog lake during day of summer with railroad in foreground
Erie Canal and towpath.
Aerial view of Waterway Locks
Free Images: "bestof:South toward the Walhonding Canal and lock.jpg 86000307 40 20 51 N 82 4 31 W Looking south from w Ohio State Route 715 State Route 715 west of Warsaw Ohio"
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