depending on the county in oklahoma you might be able to find it for yourself. For example, Oklahoma, Cleveland, and Tulsa counties all have their property records online and you can search either by owner name or address. If your county is one of these just do the search, find the plot and most of the time you can get a map that goes with it and you can plot your own route out there
ETA: Didn't see that you said Caddo County....unsure if theirs are online
Can you post a link to this? I'd like to check to see if some land I'm looking at is listed.
Thanks!