Rusty crayfish, an aquatic nuisance and an invasive species, has been discovered in a Larimer County river south of Estes ...

GRAND JUNCTION, Colo. (KJCT) - On May 2, Colorado Parks and Wildlife (CPW) publicly confirmed the presence of the invasive and aggressive rusty crawfish species in the West Fork Little Thompson River.

Colorado Parks and Wildlife (CPW) confirmed the presence of rusty crayfish in the West Fork Little Thompson River. CPW said it is the second time the species has been identified east of the ...

Rusty crayfish, an aquatic nuisance and an invasive species, has been discovered in a Larimer County river south of Estes Park, according to Colorado Parks and Wildlife. This is the first time the ...