The US mint released the Chaco Culture Quarter April 2, 2012, the 12th release of the America the Beautiful series. The quarter portrays the Chaco Culture National Historical Park on the coin’s reverse.
As of now, there are no major error varieties of this coin.
I don’t know if you call this an error or not but I have one that has a different impression on the back than George Washington is on top of the impression and it’s clearly visible.