Jacob’s Well is more than just a swimming hole. It’s also a message bearer: It lets people know how much groundwater is in the aquifer beneath them.

And this year — for the fourth time in its recorded history — the water at Jacob’s Well stopped flowing for a couple days. For months, it was at a dangerously low flow-rate. And even though the recent rains have replenished it some, the threat of drought and extreme summertime heat is not far from the minds of the people who call the Wimberley Valley home. Read more from KUT Austin.