Aurora developed as a military town , with construction of the Fitzsimons Army Hospital and the later additions of Buckley and Lowry airfields .
Aurora , which is situated just east of Denver , is Colorado 's third - largest city .
city developed as a military town , with construction of the Fitzsimons Army Hospital and the later additions of Buckley and Lowry airfields .
Aurora , which is situated just east of Denver , is Colorado 's third - largest city .