All right! Here is the response I got for getting to registration:
"Hi Billy, if you are coming from the west, you will turn into Oracle and drive about a city block. On the left is OK and on the right will be a white enclosed trailer where the girls at registration will be set up. You will pick up your goody bag, T-shirt etc and park in the middle of the street. At 9:30 the cars will then proceed about a mile and 1/2 to St. Helen's Church where the road is closed for the cars to park on either side of the street. At the registration area Casa Rivera's Mexican Rest. is offering a delicious breakfast burro at reg price and the 2nd 1/2 price if you come hungry. I hope this answers your questions. See you Saturday. Margaret"
Its a small town so I am assuming she is talking about the main road into town.