I model 1970's to 2000's IC, GM&O, CC, IAIS and Mopac from Cicero, Il. to Souix City, Iowa. I have centralized on Dubuque and East Dubuque for most of my layout. I have a 22' X 13.6' area for my layout I've been modeling in HO guage for about 60 years and I am on my ninth or tenth layout. I've been building this one for about 7 years. It is about 60% complete.