Fredericksburg Sheet

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 1:125000
Date: 1894
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Fredericksburg Sheet

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 1:125000
Date: 1906
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Fredericksburg Sheet

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 1:125000
Date: 1916
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Fredericksburg Sheet

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 1:125000
Date: 1932
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History
Correlation of Gravity of the Coal Creek Serpentine Mass, Blanco and Gillespie Counties, Texas (open access)

Correlation of Gravity of the Coal Creek Serpentine Mass, Blanco and Gillespie Counties, Texas

Abstract: "Gravitational observations were made of the pre-Cambrian Coal Creek serpentine mass in Blanco and Gillespie Counties, Texas, the geology of which had been mapped previously. The observed gravitational anomalies indicate roughly the depth of the serpentine mass below which it may possibly grade into its parent peridotitic rock. Probable correlation between the gravitational map and the other geologic features of the area is indicated" (p. 151).
Date: April 2, 1949
Creator: Romberg, Frederick & Barnes, Virgil E. (Virgil Everett), 1903-1998
Object Type: Report
System: The Portal to Texas History
The Faunas of the Riley Formation in Central Texas (open access)

The Faunas of the Riley Formation in Central Texas

Report on the faunas of the Riley formation, including fossil findings, species, fossil dating, and zone boundaries.
Date: November 1954
Creator: Palmer, Allison R.
Object Type: Report
System: The Portal to Texas History

Llano

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 1:250000
Date: 1955
Creator: United States. Army. Corps of Engineers.
Object Type: Map
System: The Portal to Texas History

Hye 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 1:24000
Date: 1962
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Rocky 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 1:24000
Date: 1962
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Hye 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 1:24000
Date: 1964
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Hye 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 1:24000
Date: 1964
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Llano

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 1:250000
Date: 1964
Creator: United States. Army. Corps of Engineers.
Object Type: Map
System: The Portal to Texas History

Blowout 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 1:24000
Date: 1970
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Rocky 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 1:24000
Date: 1973
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Llano

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 1:250000
Date: 1976
Creator: United States
Object Type: Map
System: The Portal to Texas History

Llano

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 1:250000
Date: 1976
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Blowout 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: 1979
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Hye 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: 1979
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Rocky 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: 1979
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History
Ground-Water Availability of the Lower Cretaceous Formations in the Hill Country of South-Central Texas (open access)

Ground-Water Availability of the Lower Cretaceous Formations in the Hill Country of South-Central Texas

Report on groundwater availability of the lower cretaceous formations in the hill country of South-Central Texas. It describes the geology of the area, water quality, and the Trinity Group aquifer.
Date: January 1983
Creator: Ashworth, John B.
Object Type: Report
System: The Portal to Texas History

Pedernales River

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 1:100000
Date: 1985
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

1990 Census County Block Map (Recreated): Blanco County, Block 1

Parent map for Blanco County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:24,000.
Date: 1990
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

1990 Census County Block Map (Recreated): Blanco County, Block 4

Parent map for Blanco County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:24,000.
Date: 1990
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

1990 Census County Block Map (Recreated): Blanco County, Block 7

Parent map for Blanco County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:24,000.
Date: 1990
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History