The northern Hill Country above San Antonio is unique in that is it perhaps the most valued and yet the most endangered habitat in the state. Beneath its limestone geography lies San Antonio’s precious, vital, and only source of fresh drinking water, the Edwards Aquifer. Its limestone geology, in a process called recharging, allows rainwater to seep underground, purifying itself in the process, then collecting in cavernous chambers.
This natural process routinely replaces the water used daily by San Antonians for drinking, bathing, and quenching lawns. But the region’s recharge zone has also been a battle zone, pitting special interests, politics, money, and real estate development against conservation efforts and sensible land use practices.
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