I-75N To Exit 252B Toward Howell Mill Road. Turn Right Onto Howell Mill Rd Nw. Turn Left Onto Collier Rd Nw. Your Gps Will Take You To The Main Entrance. Do Not Use That Gate. Before You Get To The Main Entrance, Take The 1St Left Before The Main Entrance. There Is A Little Sign That Says "Collier Green - Entrance For Buildings F & G Only."