New waterways discovered by the Lewis and Clark expedition:
2000 Mile Creek, Montana
Battle River, Montana
Beaver Dam River, South Dakota
Beaverhead River, Montana
Big Dry Creek, Montana
Big Dry River, Montana
Big Grave Creek, Virginia
Big Hole River, Montana
Big Muddy River, Montana
Big Nemaha River, Nebraska
Big Sioux Rivers, South Dakota - Iowa
Bighorn River, Wyoming
Blackfoot River, Montana
Bozeman Pass, Montana
Buffalo Creek, Montana
Buffalo Island, Montana
Cannon Beach, Oregon
Cannonball River, North Dakota
Canoe Creek, Washington
Cape Disappointment, Washington
Cascades of the Columbia (Great Rapids)
Cat River, Iowa
Cataract River, Washington
Cedar Creek, Missouri
Celilo Falls, Columbia River
Cheyenne Creek
Cheyenne River, Wyoming - South Dakota
Chopunnish River, Idaho
Clark's Fork, Yellowstone River, Wyoming
Clearwater River, Idaho
Cokahlahishkit River, Montana
Colorado River and Basin
Colt Creek, Idaho
Coltkilled Creek, Montana
Columbia River and Basin
Cowlitz River, Washington
Creek on High Water, South Dakota
Crooked Falls, Montana
Cruzattes's River, Washington
Dearborn River, Oregon
Deer Island, Columbia River
Des Moines River, Iowa
Des Moines River, Oregon
Deschutes River, Oregon
Field's Creek, Montana
Fish River, North Dakota
Flathead River, Montana
Floyd River, Iowa
Frazer's Creek, Montana
Gallatin River, Montana - Wyoming
Glade Creek, Montana
Goose Egg Lake, North Dakota
Grays Bay, Washington
Great Spirit is Bad Creek, Nebraska
Hood River, Oregon
Horseshoe River, Oregon
Horseshoe Bend Creek, Idaho
Hungry Creek, Montana
James River, North Dakota - South Dakota
Jefferson River, Montana
Kansas River, Kansas
Knife River, North Dakota
Kooskooske River, Idaho
La Charette Creek, Missouri
Labiche River, Oregon
Lemhi Pass, Idaho - Montana
Lemhi River, Idaho
Lewis and Clark River, Oregon
Lewis' River, Idaho
Little Basin, Missouri River, North Dakota
Little Dry Creek, Montana
Little Dry River, Montana
Little Muddy River, Nebraska
Little Sioux River, Iowa
Lochsa River, Idaho
Long Beach Peninsula, Washington
Lookout Creek, South Dakota
Madison River, Montana
Marias River, Montana
Martha's River, Montana
McNeal's Creek, Montana
Medicine River, Montana
Milk River, Montana
Miry Creek, North Dakota
Moreau River, South Dakota
Mouse River, North Dakota
Multnomah River, Oregon
Musselshell Rapid, Columbia River
New Timberland River, Washington
Nightingale Creek, Missouri
No Timber Creek, South Dakota
North Fork, Clearwater River, Idaho
Oak Creek, South Dakota
Onion Creek, North Dakota
Otter Creek, South Dakota
Panther Creek, Montana
Pipestone Creek, Minnesota
Platte River, Nebraska
Pocasse Creek, South Dakota
Porcupine River, Montana
Portage Creek, Montana
Quawmarsh Creek, Idaho
Quick Sand River, Oregon
Reuben Creek, South Dakota
Rio Colorado
Rio Grande
Rock Dam Creek, Montana
Roloje Creek, Nebraska
Rose River, Montana
Ruby River, Montana
Salmon River, Idaho
Sandy River, Oregon
Sentinal Creek, South Dakota
Shoshone Cove, Idaho
Sioux River, South Dakota - Iowa
Snake River, Idaho
Soldier's River, Iowa
Spirit Lake, Iowa
Stone Idol Creek, South Dakota
Stone River, Iowa
Teton River, Montana
Tillamook Head, Oregon
Tongue Point, Oregon
Tongue River, Wyoming - Montana
Towarnehiooks River, Oregon
Track Creek, Montana
Traveler's Rest Creek, Montana
Turf Creek, Montana
Two Medicine River, Montana
Valley Plain River, Montana
Vermillion River, South Dakota
Weippe Prairie, Idaho
Weiser River, Idaho
White Bear Islands, Montana
White Brant Creek, South Dakota
White Cliffs, Missouri Breaks, Montana
White Stone River, South Dakota
Willamette River, Oregon
Willard's Creek, Montana
Willow Creek, Iowa
Willow Run, Montana
Wind River, Washington
Wisdom River, Montana
Yellowstone River
