35     1102 The Arkansas River Basin
35     1104 The Cimarron River Basin
35     1108 The Canadian River Basin
35     1109 Lower Canadian
35     1110 The North Canadian River Basin
35     1112 The North Fork Red River
35     1205 The Brazos River Basin
35     1208 The Colorado River Basin
35     1301 The Rio Grande Basin
35     1302 Rio Grande-Elephant Butte
35     1303 Rio Grande-Mimbres
35     1305 Rio Grande Closed Basins
35     1306 The Pecos River Basin
35     1307 Lower Pecos
35     1408 The San Juan River Basin
35     1502 The Little Colorado River Basin
35     1504 The Gila River Basin
35     1508 Sonora