El Chapote Creek Quadrangle

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date: 1972
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Cuevitas Southwest Quadrangle

Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date: 1972
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History
Soil Survey of Starr County, Texas (open access)

Soil Survey of Starr County, Texas

Text describes the area, climate, agricultural history and statistics, soil-survey methods and definitions, soils and crops, land uses and agricultural methods, irrigation, and morphology and genesis of soils of Starr County, Texas.
Date: August 1972
Creator: Thompson, Charles M.; Sanders, Russell R. & Williams, DeWayne
Object Type: Book
System: The Portal to Texas History