The concept of "ley lines" was first popularized in 1921 by amateur archaeologist Alfred Watkins. Watkins proposed that straight tracks (leys) crisscrossed the English landscape, connecting ancient landmarks, churches (often built on older pagan sites), and hilltops. He theorized these were old trade routes or sightlines.
For reliable geographic data on the state, you may want to consult official Texas Map Projections from academic sources like the University of Texas. ley lines texas map fixed