Highly detailed pocket map of Los Angeles and Orange Counties, published by C.F. Weber.
The map shows early railroads, roads, wagon roads, mines, lakes, mills, and mny other details.
A number of early ranchos are shown. There is additional detail of surrounding counties including Ventura, Kern, San Bernardino and Riverside.
One of the earliest obtainable separately issued maps of Orange County, which was formed in 1889.