1201 Sabine
1202 Neches
1203 Trinity
120301 Upper Trinity
120302 Lower Trinity
1204 Galveston Bay-San Jacinto
120401 San Jacinto
120402 Galveston Bay-Sabine Lake
1205 Brazos headwaters
1206 Middle Brazos
120601 Middle Brazos-Clear Fork
120602 Middle Brazos-Bosque
1207 Lower Brazos
120701 Lower Brazos
120702 Little
1208 Upper Colorado
1209 Lower Colorado-San Bernard Coastal
120901 Middle Colorado-Concho
120902 Middle Colorado-Llano
120903 Lower Colorado
120904 San Bernard Coastal
1210 Central Texas Coastal
121001 Lavaca
121002 Guadalupe
121003 San Antonio
121004 Central Texas Coastal
1211 Nueces-Southwestern Texas Coastal
121101 Nueces
121102 Southwestern Texas Coastal
8 JUNE 1999, last updated on 9 AUG 2000
D.L. Gustafson
dlg@rapid.msu.montana.edu