BALCONES CREEK. Balcones Creek rises a mile southwest of the junction of the Bandera, Kendall, and Bexar county lines in northeastern Bandera County (at 29�43' N, 98�48' W) and runs east for thirteen miles to its mouth on Cibolo Creek, at the junction of Kendall, Bexar, and Comal counties (at 29�45' N, 98�39' W). Live oak, mesquite, Ashe juniper, prickly pear, and a variety of grasses grow in the clayey loams that cover the steep slopes and benches of the surrounding terrain. Balcones Creek has served as the boundary between Kendall and Bexar counties since the establishment of Kendall County in 1862.