- Trees such as mountain laurel, cedar and Live Oak abound, as well as riparian species such as willows, cottonwood, and sycamores. Steep slopes provide scenic overlooks of the surrounding Bexar County and glimpses of San Antonio. Rare birds such as the Golden-cheeked Warbler can be found. Geologically, the Natural Area lies on the Balcones Escarpment, an area of deeply entrenched canyons that defines the eastern boundary of the Edwards Plateau. Approximately 88% of the Natural Area overlays the Edwards Aquifer recharge zone. The remaining acreage overlies the transition zone for water recharge.P>From the intersection of Loop 1604 and Culebra Road (also known as FM 471 - back road to Castroville), travel west 3.5 miles to Galm Road. Turn north (right) on Galm and travel 1.6 miles; gate with signs on the left.
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