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?
During his administration, Lyndon Johnson signed more education bills into law than any other president. He signed the landmark Elementary and Secondary Education Act of 1965 at his first school. Lyndon B. Johnson National Historical Park