MAP of The Duke Golf Course at Rancho El Dorado in Maricopa Arizona by RayD | Oct 25, 2014 | Golf Information | 0 comments Below is a PDF file showing a map of The Duke Golf Course @ Rancho El Dorado in Maricopa Arizona. The DUKE is located at: 42660 W Rancho El Dorado Parkway Maricopa, AZ 85218 480.844.1100 Download the PDF file .