
Maquoketa can refer to some places in the United States: ...
Found on
http://en.wikipedia.org/wiki/Maquoketa

The Maquoketa Shale Group is Ordovician in age, with green to blue shale with limestone and dolomite beds in lower portion. The group has been eroded over part of northern Illinois, but underlies most of the rest of the state.
Found on
http://www.encyclo.co.uk/local/22047
No exact match found.