This map of Arizona is from an 1886 atlas that was revised in 1887. It was published by George V. Jones & Co., a map company of which I have never heard. The map says it was engraved for People’s Publishing Co. in Chicago. I’ve cropped it to show just Cochise County.
It has some interesting mistakes that I spotted. Perhaps you can find more. (Continued below map.)
It has a second Southern Pacific Railroad running through Tombstone and eastward through the Pedrogosa Mountains and on into New Mexico (though the hatched lines east of Tombstone may indicate a planned, rather than existing, route), as well as the Southern Pacific route through Benson and Wilcox (with one “l” instead of two.) While Tombstone very much wanted a railroad, it wouldn’t be until the opening of the 20th century that one arrived, a branch of the El Paso & Southwestern that ran down to Bisbee.
What’s not here, properly so
The map is accurate in not showing a railroad to Bisbee, since that wouldn’t go in until 1889, but it is not right in showing one down the west bank (crossing the river twice) of the San Pedro River — which it calls Prospect Creek — into Mexico.
It is correct in not showing several items, including Naco, Douglas, Nogales (which is off the part of the map you’re seeing), as well as Santa Cruz County and Greenlee County, which weren’t carved out until the 20th century.
The map shows what we now call White Water Draw as White River, noting that it is flowing underground. It labels the valley it flows through as Sulphur Spring (singular), which was the original name.
It misspells “Chiricahua” as “Chirichua” and it gives the Dos Cabezas range the wrong gender. While it gets San Simon’s name right, it calls the surrounding valley the “San Simeon,” (partly cut off) and the eponymous river is called the Sauz River, which indeed is one of the many early names of the seasonal wash.
That’s what I spotted. What else do you see?