: A photograph of a lock on the Ohio-Erie Canal in Tuscarawas County, Ohio.
A lock is a device for raising and lowering boats between stretches of water of different levels on river and canal waterways. The distinguishing feature of a lock is a fixed chamber in which the water level can be varied; whereas in a caisson lock, a boat lift, or on a canal inclined plane, it is the chamber itself (usually then called a caisson) that rises and falls.
Locks are used to make a river more easily navigable, or to allow a canal to take a reasonably direct line across land that is not level. View on Ohio Memory.
: SA1039AV_B14F02_024_001 Subjects
: Tuscarawas County (Ohio)--History; Locks (Canal); Canals--Ohio; Miami and Erie Canal (Ohio)--History; Geography and Natural Resources; Transportation--Ohio--History.; Ohio--History--Pictorial works; Federal Writers' Project Places
: Tuscarawas County (Ohio)