County of lighthouse: Callaway County
Location of lighthouse: I-70, S. service Rd. (Lighthouse Lane), near Millersburg
This was also a steak house and even Hazel Kinder's Lighthouse Theater. It was empty when I visited a month ago, but the web says Cherie's Cake Boutique has moved in.
The light works, shines a yellow light, being so close to the interstate a white light was frowned on by MoDoT, glare in drivers eyes.