I always like to fill up my rental car just prior to returning it. When I left the National lot at DEN the other day I didn't see anyplace to buy gas. The airport is miles out of town in the boondocks (I went straight to Boulder via tollroads).
Is there a gas station anywhere the rental car return at DEN? I will be arriving at the airport at about 11am on Monday, via I-70 from the mountains.
Thanks for any advice.