Paper Trail Achivement
"Complete 3 deliveries of Logs to Chuck & Jack's, and 3 deliveries of Wood Shavings to Page & Price Paper, within Arkansas."
As there are only two areas for 'Page & Price Paper' (north of Texarkana and east of El Dorado), you can deliver always to the same company area. 'Chuck & Jack`s' has six areas and it looks like only the ones east of Texarkana and south of El Dorado count.