Unused county road on my property land, what to do?

[Jesus Sosa]

I was door-knocking yesterday to get a feel of the neighborhood I am planning to invest in. The next-door neighbor gave me lots of details of the area and even told me about a road that was once used for traffic bypass back in the 1980s. This road happened to be in between his house and mine, and it runs through my back yard and onto the main road. He mentioned, the county just didn't seem to care and let the woods grow overtime. Now, since this area isn't used anymore could I contact the county to either clear out the road again or sell it to me? I know this may seem confusing, but below will be a picture of what it looks like in the tax map. What should I do with the "potential" additional land?