SEO is located south of Caldwell, Ohio on State Route 821 (Marietta Road).
- Take the Caldwell/Woodsfield exit #25 off interstate 77.
- Turn eastbound onto State Route 78 and proceed to the second light.
- Turn right (south) onto State Route 821 (Marietta Road).
- Go 4 - 5 miles on 821 and you will see SEO on your left.