Driving through the Hill Country’s back roads, you want to keep your eyes peeled. Maybe you’ll spot a flash of bright wildflowers, or a coyote slinking into the brush. But one day a few months ago, something entirely different caught the eyes of park staff at Enchanted Rock State Natural Area, about twenty minutes north of Fredericksburg. A For Sale sign had been posted outside a neighboring ranch. Some 630 acres dotted with colossal live oaks, granite ridges, and trickling springs were on the market. The natural area—home to a massive pink granite dome for which it’s named—draws hundreds of thousands of visitors each year, and it frequently reaches capacity by 9 or 10 a.m. on the weekends, forcing staff to turn away droves of unhappy…