@Jay Hinrichs
Sounds crazy but its the truth.
All of Oklahoma was Indian territory and it became a state in 1907
I know of two areas I was looking in a few years ago I was shocked to find that the newest plat is from 1907 :) and there were Indian allotments for the two different tribes in that county some of the boundry lines are blurred
So the county's map shows those on the tax roll, then some of the church land is a blank ,some of the gov land is a blank on the map
some of the map is marked as Indian land,and some is blank that may be Indian land .
But they are unsure which tribe because of a river and creek that moved over time.
And back in the day ,some tribal members sold land off in bits and pieces to someone not indian (before you had to go to the federal court to transfer)
I would guess some didn't want it on the tax rolls(why pay taxes on it?)
So it was took off the Indian land and never put on tax roll
I don't really know how often this happened
So some of the land may not show up anywhere :)