Another thing, it might be of import that west of the Mississippi there were land grants made by the Spanish and French Crowns before the United States even existed. Furthermore, AFAIK land grants and land patents in the original 13 colonies were made by the states or by the British Crown or by some other Crown but not by the United States. Although much of the land patent hub-bub centers around land grants issued by the government of the United States.
There is also this thing called a close.