Cox Reservoir   Be the first to submit input for Cox Reservoir. If you have info on Cox Reservoir, Frio County, Texas please submit it here to improve this web site.          These outdoors activities are available near Cox Reservoir.   Hotels Near Cox Reservoir: BEST WESTERN PLUS Lytle Inn & Suites, Lytle, 11 miles away Days Inn San Antonio Lytle, Lytle, 12 miles away Hotel Alsace and Spa, Castroville, 16 miles away Pearsall Executive Inn And Suites, Pearsall, 18 miles away Best Western Pearsall Inn & Suites, Pearsall, 18 miles away