Jacob’s Well is a perennial karstic spring in the Texas Hill Country flowing from the bed of Cypress Creek, located northwest of Wimberley, Texas.
Jacob’s Well has already claimed eight lives so far. But it didn’t
stop thrill seekers and kids from diving into the bottomless black hole
of Jacob’s Well.
Jacob's Well is a perennial karstic spring in the Texas Hill Country
flowing from the bed of Cypress Creek, located northwest of Wimberley,
Texas. The twelve foot (four meter) diameter mouth of the spring serves
as a popular swimming spot for the local land owners whose properties
adjoin Cypress Creek. From the opening in the creek bed, Jacob's Well
cave descends vertically for about thirty feet (ten meters), then
continues downward at an angle through a series of silted chambers
separated by narrow restrictions, finally reaching a depth of one
hundred and twenty feet (forty meters). Until the modern era, the
Trinity Aquifer-fed natural artesian spring gushed water from the mouth
of the cave, with a measured flow in 1924 of one hundred and seventy
gallons per second (six hundred and forty liters per second) discharging
six feet (two meters) into the air. The spring is the greatest source
of water recharging the Edwards Aquifer.