2007 Economic Census Map: San Antonio, Texas Metropolitan Statistical Area

Map showing the area of the San Antonio, Texas Metropolitan Statistical Area for which the U.S. Census Bureau collected data during the 2007 economic census.
Date: 2007
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History
Texas Hill Country Trail Region: Exploring the Mystique of Central Texas (open access)

Texas Hill Country Trail Region: Exploring the Mystique of Central Texas

Travel guide for the various cultural and historical sites along the Texas Hill Country Trail in Central Texas.
Date: April 2010
Creator: Texas Historical Commission
Object Type: Pamphlet
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
Edwards Aquifer Hydrogeologic Status Report for 1992 (open access)

Edwards Aquifer Hydrogeologic Status Report for 1992

Report on the status of the Edwards Aquifer, discussing current and historic water levels, trends, and water quality.
Date: August 1993
Creator: Edwards Underground Water District (Tex.). Field Operations Division.
Object Type: Report
System: The Portal to Texas History