Avalanches may be a hazard. A few years ago, a party of three was killed by an avalanche on Orizaba. Buy your bus ticket at the window in the station. Busses run about every 15 minutes on the routes listed below. Take a taxi from Amecameca.
ADO is one of the first class bus lines.
Figure a two hour bus ride and a one hour taxi ride. If the hut at Tlamacas is open, it will probably not be necessary to make arrangements in advance to go down, as there is enough traffic to make it fairly easy to find a ride. Take the first class bus from the TAPO station to Puebla. Take the second class bus from Puebla to Tlachichuca. Senor Joaquin Conchola was our driver.