All Reaches (201)
- Ashley Creek
- Badger C
- Battle Creek
- Battle Creek
- Beaverhead River
- Beaverhead River
- Beaverhead River
- Big Hole River
- Big Hole River
- Big Hole River
- Big Hole River
- Big Hole River
- Big Muddy Creek
- Big Sandy Creek
- Bighorn River
- Bighorn River
- Bitteroot River
- WF Bitterroot River
- Bitterroot River
- Bitterroot River
- Blackfoot River
- Little Blackfoot River
- Blackfoot River
- NF Blackfoot River
- Blacktail Creek
- Boulder River
- Boulder River
- Boulder Creek
- CF Yellowstone River
- CF Yellowstone River
- Clark Fork
- Clark Fork
- Clark Fork
- Clark Fork
- Clark Fork
- Clark Fork
- Clark Fork
- Clark Fork
- Clark Fork
- Clear Creek
- Cut Bank Creek
- Dearborn River
- Divide Creek
- Divide Creek
- East Gallatin River
- East Poplar
- Fisher River
- NF Flathead River
- SF Flathead River
- SF Flathead River
- MF Flathead River
- Flathead River
- Flathead River
- Flathead River
- Flathead River
- Flint Creek
- Flint Creek
- Flint Creek
- Frenchman River
- Gallatin River
- Gallatin River
- Gardner River
- Hanging Woman Creek
- Jefferson River
- Jefferson River
- SF Jocko River
- Judith River
- Kootenai River
- Lake Creek
- Little Bighorn River
- Little Bighorn River
- Little Bighorn River
- Little Peoples Creek
- Little Prickly Pear Creek
- Lodge Grass Creek
- Lodge Creek
- Lost Creek
- Lost Creek
- Madison
- Madison River
- Madison River
- Madison River
- Madison River
- Marias River
- Marias River
- Marias River
- Milk River
- Milk River
- Milk River
- NF Milk River
- SF Milk River
- NF Milk
- Milk River
- Milk River
- Milk River
- Milk River
- Milk River
- Milk River
- Mill Creek
- Mill Creek
- Missouri Riv
- Missouri River
- Missouri River
- Missouri River
- Missouri River
- Missouri River
- Missouri River
- Missouri River
- Missouri River
- Missouri River
- Missouri River
- Muddy Creek
- Muddy Creek
- Musselshell River
- Musselshell River
- Musselshell River
- Musselshell River
- Musselshell River
- Musselshell River
- Musselshell River
- Nelson Creek
- Nevada Creek
- Nevada Creek
- Otter Creek
- Pass Creek
- Peoples Creek
- Peoples Creek
- Poplar River
- Poplar River
- Powder River
- Powder River
- Prickly Pear Creek
- Prospect Creek
- Pryor Creek
- Pumpkin Creek
- Red Lodge Creek
- Red Rock Creek
- Red Rock River
- Redwater River
- Rock Ck
- Rock Creek
- Rock Creek
- MF Rock Creek
- Rosebud Creek
- Ruby River
- Ruby River
- Shields River
- Silver Bow Creek
- Silver Bow Creek
- Silver Bow Creek
- Smith River
- Smith River
- Smith River
- Smith River
- Soda Butte Creek
- Soda Butte
- St Mary Canal
- St Mary Ca
- St Mary River
- St Regis River
- St. Mary River
- Stillwater River
- Stillwater River
- Stillwater River
- Sun River
- Sun River
- Swan River
- Swiftcurrent Creek
- Swiftcurrent
- Tenmile Creek
- Teton River
- Teton River
- Teton River
- Thompson River
- Tobacco River
- Tongue River
- Tongue River
- Tongue River
- Tongue River
- Tongue River
- Tongue River
- Two Med River
- W Rosebud Creek
- Warm Springs Creek
- Warm Springs Creek
- West Rosebud Creek
- Whitefish River
- Willow Creek
- Willow Creek
- Willow Creek
- Willow Creek
- Willow Creek
- Yaak River
- Yellowstone River
- Yellowstone River
- Yellowstone River
- Yellowstone River
- Yellowstone River
- Yellowstone River
- Yellowstone River
- Yellowstone River
Status: Low – Okay – High (thresholds set per reach based on flow or gage height)
Updated