Have you thought about talking to the logging company? If they still have the timber rights for the property, I would bet that they are working on a way to gain access to harvest their timer.
You could also talk to the owner who previously allowed access. Offer him $100/yr for use of his access road and promise to repair any damage you cause. He might be willing to talk to an individual instead of a timber company. But make sure you get it in writing.

Could you look at a plat for the property in the county tax office to identify the road?

We meet a gentleman that is a family fried with both property owners and had hunted the propertys since he was a kid. He's about to to buy the cousins property and told us he didnt have a problem with us using that entrance, after he buys it of course. So for now we're hauling everything on dollies