Rates are subject to tax and service fees.grand bahama island casino junkets INDIAN GAMBLING MINNESOTA SALARY SURVEYS What does dgpc mean? dgpc as abbreviation means " Dubuque Greyhound Park and Casino ". Q: A The most common shorthand of " Dubuque Greyhound Park and Casino " is dgpc. Minutes from Diamond Jo Casino, this Dubuque, Iowa hotel offers a free hot breakfast every morning and guestrooms with free high-speed internet access. This hotel is adjacent to the Mystique Casino and within an 8-minute walk of Dubuque Greyhound Park. A detailed review of Dubuque Greyhound Park & Casino, they have 0 table games and slot machines and are located at Greyhound Park Drive, Dubuque, Iowa, United States.