Viejas, and Barona, have a church event called the May Crowning.  This is where a young lady places a crown on flowers on the head of a statue of the Virgin Mary.  This may all lead back to the traditional belief in Sin-MuHow, who also gave virgin birth, but no one really knows.  In years past this was a big event and a huge crowd would show up.  Now it is much smaller and not as formal as it used to be.  

Viejas 2001

Barona 2003