If I were you and you know that it's county or state owned, I'd hunt it before they tear it up before it gets lost forever.
If it's owned by a private landowner, then you could go to the County Surveyors office and purchase a County Plat Book. That gives the size of properties as well as the landowners names. From there, you can look up the address of the landowner and contact them in person to hunt. Just a trick I pulled out of my deer hunting arsenal trick bag. I bought a Plat book years ago for Elkhart County and I think it was right around $20.00. Most recently I bought one for Cass County MI and it ran $20-25. It's a good tool to have and use.