Technically speaking, making up a name is not factual, but I understand what you mean. I've been reading the archive and in some stories Smallville is 150 miles west of Wichita. Dodge City, a city of comparable size, is 150 miles west of Wichita, so Smallville would be about ten miles south of Dodge City (of 'Gunsmoke' fame.)Driving 150 miles to Wichita's airport is unnecessary when Dodge has an airport, too. Keeping Smallville's location vague works.