Dee Valley Water was created in 1863.
Colne Valley Water was created in 1873.
Santa Clara Valley Water District was created in 1952.
A valley typically is created by erosion, either by water or a glacier. I suppose a valley could also be created as two tectonic plates separate, such as the Great Rift Valley.
In the Valley was created in 1890.
The Valley of the Lost was created in 2002.
Valley of the Shadows was created in 1993.
In a Valley by the Sea was created on 2007-10-04.
The Valley Library was created in 1887.
Peace in the Valley was created in 1937.
Valley of the Dolls was created in 1966.
Whitemans Valley was created in 1871.