Santa Catarina Minas, Oaxaca
In Ocotlán, the stand for camionetas (Mex$8) and colectivos to Santa Catarina Minas is about three-quarters of a block east of the Zócalo on the northside of Avenida Aldama. In Santa Catarina Minas, the turnaround point for camionetas and colectivos is at the intersection of the main highway and the road to church. Visible from the main highway, the church is about a quarter of a mile away. The church is open most days from 9 a.m. to 6 p.m.
To go on to San Baltazar Chichicapam go back to the main highway and wait for a red camioneta (Mex$15, color red) or colectivo heading east, away from Ocotlán. Otherwise, to get back to Ocotlán, comionetas or colectivos leave frequently at the turnaround point at the main highway.
Note to readers: When this writer visited the church, two persons with walkie-talkies, claiming to be municipal officials, attempted to "fine" me for photographing the church. This happened right in front of the municipal building and right in front of the police, who were also standing nearby. I refused to pay, and they quickly gave up trying to extort money from me. I filed a complaint at the tourist office in the city Oaxaca. Hopefully, something was done about it. I wouldn't let this incident stop you from visiting the church, but if someone tries this scam on you, my advice is to refuse to pay, unless, of course, things start to get ugly. Either way, if something happens, file a complaint at the tourist office.