Texas Parks and Wildlife Feature on Jacob's Well

At first sight, Jacob’s Well appears to be a deep, dark hole at the bottom of a pool of creek water — nothing more. Pay attention to how the hole, about 15 feet in diameter, has perpetually gushed pure artesian water out of the ground since before humans first wandered around this part of what is now known as the Hill Country, and it takes on deeper meaning. Listen to stories about it, and it becomes something much more than just a special natural place.  Link to TPW article here.