0701 Mississippi Headwaters
070101 Mississippi Headwaters
070102 Upper Mississippi-Crow-Rum
0702 Minnesota
0703 St. Croix
0704 Upper Mississippi-Black-Root
0705 Chippewa
0706 Upper Mississippi-Maquoketa-Plum
0707 Wisconsin
0708 Upper Mississippi-Iowa-Skunk-Wapsipinicon
070801 Upper Mississippi-Skunk-Wapsipinicon
070802 Iowa
0709 Rock
0710 Des Moines
0711 Upper Mississippi-Salt
0712 Upper Illinois
0713 Lower Illinois
0714 Upper Mississippi-Kaskaskia-Meramec
071401 Upper Mississippi-Meramec
071402 Kaskaskia
8 JUNE 1999, last updated on 9 AUG 2000
D.L. Gustafson
dlg@rapid.msu.montana.edu