_Horribilis_ group: _Ursus horribilis horribilis_ Ord Missouri River, northeastern Montana. _horribilis bairdi_ Merriam Blue River, Summit County, Colorado. _horribilis imperator_ Merriam Yellowstone National Park, Wyoming. _chelidonias_ nobis Jervis Inlet, British Columbia. _atnarko_ nobis Atnarko River, British Columbia. _kwakiutl_ Merriam Jervis Inlet, British Columbia. _nortoni_ Merriam Southeastern side Yakutat Bay, Alaska. _warburtoni_ Merriam Atnarko River, British Columbia. _neglectus_ Merriam Near Hawk Inlet, Admiralty Island, Southeastern Alaska. _californicus_ Merriam Monterey, California. _tularensis_ Merriam Fort Tejon, California. _colusus_ Merriam Sacramento Valley, California. _dusorgus_ nobis[2] Jack Pine River, Alberta-British Columbia boundary. _Planiceps_ group: _Ursus nelsoni_ Merriam Colonia Garcia, Chihuahua, Mexico. _texensis texensis_ Merriam Davis Mountains, Texas. _texensis navaho_ Merriam Navajo country near Fort Defiance, Arizona. (Probably Chuska Mts.) _planiceps_ nobis Colorado (exact locality uncertain). _macrodon_ nobis Twin Lakes, Colorado. _mirus_ nobis Yellowstone National Park, Wyoming. _eltonclarki_ Merriam Near Freshwater Bay, Chichagof Island, Alaska. _tahltanicus_ Merriam Klappan Creek ( = Third South Fork Stikine River), British Columbia. _insularis_ Merriam Admiralty Island, Alaska. _orgilos_ Merriam Bartlett Bay, east side Glacier Bay, Southeastern Alaska. _orgiloides_ nobis Italio River, Alaska. _pallasi_ Merriam Donjek River, southwestern Yukon. _rungiusi rungiusi_ nobis Rocky Mountains, headwaters Athabaska River, Alberta. _rungiusi sagittalis_ nobis Champagne Landing, southwestern Yukon.