Colored By Ranchos!
Fine early map of San Diego County, published by Edward M. Burbeck.
the map shows the progress of township subdivisions, but is most noteworthy for its illustration of ranchos in color, an unusual feature for printed maps.
Dozens of small early towns are shown, as are Post Offices, Schools, Railroads, County Roads and Flume Lines (existing and proposed).
A large section of the eastern part of the County, which would become Imperial County, is highlighted in Green and called Irrigable Land.
The name Irving A. Hubon appears on San Diego related maps from about 1895 to 1908.
OCLC locates a single copy (Yale).