Used for

• Bitterroot River (Mont. and Idaho)
• Clark Fork River (Mont. and Idaho)
• Clark Fork, Columbia River (Mont. and Idaho)
• Clark's Fork (Mont. and Idaho)
• Clarke Fork (Mont. and Idaho)
• Columbia River, Clark Fork (Mont. and Idaho)
• Deer Lodge River (Mont. and Idaho)
• Hell Gate River (Mont. and Idaho)
• Hellgate River (Mont. and Idaho)
• Missoula River (Mont. and Idaho)
• Pend D'Oreille River (Mont. and Idaho)
• Silver Bow River (Mont. and Idaho)
• Silverbow River (Mont. and Idaho)