Please Use Gps. I-20 E To Exit 66 For Columbia Drive. Keep Right And Merge Onto Columbia Drive Moving To The Left Lane. In 0.2 Miles, Turn Left Onto Rainbow Drive. In 0.9 Miles, Turn Right Onto Whirlaway Drive. In 410 Ft, Turn Right On Calumet Road. Travel 0.4 Miles And Arrive At 3599 Calumet Road On The Right.