Thursday morning I walked down the hill to take some photos of the buried church. I've told the story before, so I'll make it short. There used to be a gold mine farther up in the hills. Water is used to separate the gold from the rest of the worthless rocks. (Again I refer you to "The Treasure of The Sierra Madre"') So anyway, in 1937 it rained a lot and the water pond burst and all the water and mud came down the hill and buried five neighborhoods (barrios) and the only thing left above ground is the church tower.
About 1:30 I left Tlalpujahua for Toluca. The distance is about seventy miles, so I guess I averaged twenty-five miles an hour, arriving about 4:30. Well, I guess I took the long way, due to my avoidance of the toll roads. Anyway, I saw a sign for an archaelogical zone (Calixtlahuaca) and thought I might spend the night in the parking lot. But it turns out that the site is a very small one and has no parking lot, so I drove another fifty yards or so past it and parked on a flat spot by the side of the road. I knocked on the door of a house across the street and advised the young lady who answered the door of my plans to pass the night. She was agreeable and informed me that it was a peaceful neighborhood without gangs or graffiti.
The ruins site has a round building, supposedly an observatory. I believe this is probably true, due to the location, which is quite elevated.