The initial flow of the major streams within the seven-county area comes from seeps and springs, primarily from the Edwards-Trinity aquifer. Groundwater in the area is generally available from the strata of Hickory Sandstone, Ellenburger Limestone, Hensell Sand and Edwards Limestone.
Did You Know?
President Johnson flew home to his Texas ranch 74 times during his 5 years in office, living and working for 490 days—or about one-fourth of his presidency—at the Texas White House. Here he confers with Gen. William Westmoreland on May 30, 1968. Lyndon B. Johnson National Historical Park