Duane's take
Here's how the official marker tells it, and I'm gonna give it the room it deserves. Now picture this: March 27, 1960. Four students from St.
Mary's University down in San Antonio are pokin' around the Texas Hill Country, and they find something the rest of the world somehow missed. A cave. Not just any cave — a cavern of early Cretaceous age, still growin', still drippin', still addin' to itself one slow mineral breath at a time.
And guardin' the entrance? A natural rock bridge, standin' right there like it'd been waitin' for someone to finally show up and notice it. That bridge gave the place its name: Natural Bridge Caverns.
Now hold on — because here's where it gets deep, and I mean that in more ways than one. Long before those four students ducked under that rock bridge, long before Governor John Connally made things official on August 5, 1964, when he dedicated the site with all the ceremony a Texas governor can muster — people already knew this place. Artifacts found inside reach back to 5000 B.C.
Human remains have been discovered there, remains at least eight thousand years old. Indian campsites, too. Generation after generation of people who understood that this particular spot in the earth was worth coming back to.
And the cavern just kept on forming through all of it. Through every campfire, every century, every silence. Four college students stumbled into eight thousand years of history on a March afternoon.
The rock bridge was there the whole time, just waitin' on somebody curious enough to walk under it.
What the marker says
Discovered March 27, 1960, by four students of St. Mary's University, San Antonio. Named for the rock bridge that marks entrance. Dedicated on August 5, 1964 by Governor John Connally. Of early cretaceous age; still forming. Site of artifacts from 5000 B.C., and human remains at least 8,000 years old; also Indian campsites. 1967