The Detroit Region Aerotropolis Development Corporation is a four-community, two-county public-private partnership driving corporate expansion and new investments around Detroit Metro and Willow Run Airports. The Aerotropolis is the premiere location for greenfield expansion in Southeast Michigan, offering 6,000 acres of development-ready land centered in a world-class network of transportation infrastructure: 2 Airports, 3 Freeways, and 5 Rail Lines.