[PAR] [TLE] Colter Falls [SEP] Colter Falls, also Coulter Falls, (4.3m) waterfall, nearly 0.5 mi in width, part of the Great Falls of the Missouri, on the Missouri River in north-central Montana.  Downstream of Colter Falls lies Rainbow Falls, and upstream is Black Eagle Falls.  The Lewis and Clark Expedition was known to discover Westslope cutthroat trout at the base of the falls.  The falls is now flooded in the impoundment behind Rainbow Dam.  As Rainbow Dam's reservoir is a run-of-the-river reservoir, it rarely is emptied, so the falls is rarely seen even in extreme drought.  The falls was named by Paris Gibson, founder of the city of Great Falls, Montana, while they were not named by Lewis and Clark, who measured it at "6 feet 7 inches". [PAR] [TLE] Westslope cutthroat trout [SEP] The westslope cutthroat trout ("Oncorhynchus clarki lewisi"), also known as the black-spotted trout, common cutthroat trout and red-throated trout is a subspecies of the cutthroat trout ("Oncorhynchus clarki") and is a freshwater fish in the salmon family (family Salmonidae) of order Salmoniformes.  The cutthroat is the Montana state fish.  This subspecies is a "species of concern" in its Montana and British Columbia ranges and is considered "threatened" in its native range in Alberta.
[PAR] [TLE] Colter Falls [ SEP ] Colter Falls , also Coulter Falls , ( 4.3 m ) waterfall , nearly 0.5 mi in width , part of the Great Falls of the Missouri , on the Missouri River in north - central Montana . Downstream of Colter Falls lies Rainbow Falls , and upstream is Black Eagle Falls . The Lewis and Clark Expedition was known to discover Westslope cutthroat trout at the base of the falls . The falls is now flooded in the impoundment behind Rainbow Dam . As Rainbow Dam 's reservoir is a run - of - the - river reservoir , it rarely is emptied , so the falls is rarely seen even in extreme drought . The falls was named by Paris Gibson , founder of the city of Great Falls , Montana , while they were not named by Lewis and Clark , who measured it at " 6 feet 7 inches " . [PAR] [TLE] Westslope cutthroat trout [ SEP ] The westslope cutthroat trout ( " Oncorhynchus clarki lewisi " ) , also known as the black - spotted trout , common cutthroat trout and red - throated trout is a subspecies of the cutthroat trout ( " Oncorhynchus clarki " ) and is a freshwater fish in the salmon family ( family Salmonidae ) of order Salmoniformes . The cutthroat is the Montana state fish . This subspecies is a " species of concern " in its Montana and British Columbia ranges and is considered " threatened " in its native range in Alberta .
Colter Falls is part of the Great Falls of the Missouri River where the Lewis and Clark Expedition was known to discover a freshwater fish of what order?
Colter Falls is part of the Great Falls of the Missouri River where the Lewis and Clark Expedition was known to discover a freshwater fish of what order ?
Salmoniformes
Salmoniformes