Cadastral "tracing" map of Starr County, Texas in the South Texas Plains region. Some notes and features are marked in color; locations of ranches, lagunas, roads, surveys, and creeks are noted. Scale ca. 1:133,334 (4000 varas per inch).
Map of the South Texas Plains region covering Duval County, Texas. The roads from San Diego to Mier, to Rio Grande, and to Eagle Pass, Texas are shown on map. Scale ca. 1:133,334 (4000 varas per inch).