Indiana became the 19th state in 1816 (see statehood order) -
Indiana's state quarter features the state motto: "Crossroads of America,"
IndyCar, Illinois state outline, and nineteen stars -
public domain image on Wikipedia - see all 50 state quarters
"The Crossroads of America"
The Crossroads of America is the official motto of Indiana. The nickname began as the nickname for the city of Indianapolis, which is the hub for several major Interstate highways that criss-cross the state, connecting Hoosiers to the rest of the United States.
Geology and topography maps of Indiana and USA: USGS