All of the games I did were at Y-City Park. Most were 18U and 16U, but I did do some 14U and 12U too, including the 12U championship game on Sunday.
If I'm remembering right, on Friday I was on field #3 all day, just me and one other umpire. On Saturday, field #2 rotating on and off with two other umpires and on Sunday on field #1, with the same two other umpires from Saturday.