Here is a general map of the area showing the start and stop points for the Copper Canyon railway or CHEPE. (These top two maps are fromMexBound.com, a great source for Mexican car insurance and other Mexico information.)
NOTE: This map above shows El Paso and route 45. This is the way we usually enter the area by van- a very pleasant introduction to the Sierra Madres. Then we leave the country by way of Casas Grandes. We make both border crossings at St Teresa , New Mexico- a very quiet and easy little crossing.
Note that the red star is Chihuahua City- the starting point for the Copper Canyon train. The passenger train does NOT originate in Ojinaga as shown on this map. Also Urique is not a rail stop. This little town is at the bottom of the canyon, 2 hours by road from the Bahuichivo station. The town of Cerocahui is between Bahuichivo and Urique- a great place to stay.
The chart below gives elevations of the railway as it goes from Ojinaga to Topolobampo.
This one is of a billboard at the CHEPE staion in El Fuerte. It gives an idea of how the towns fit on the rail line, etc