Description
Lupus occidentalis
Date 1834
Source/Photographer Iconographia Zoologica
Old Latin name Lupus occidentalis
New Latin name Canis lupus occidentalis
Common name Nederlands: Mackenziewolf
Source: https://commons.wikimedia.org/wiki/File:Lupus_occidentalis_-_1834_-_Print_-_Iconographia_Zoologica_-_Special_Collections_University_of_Amsterdam_-_UBA01_IZ22200381.tif

The northwestern wolf, Canis lupus occidentalis, also known as the Mackenzie Valley wolf, Alaskan timber wolf, Canadian timber wolf, or northern timber wolf, is a subspecies of gray wolf in western North America. It ranges from Alaska, the upper Mackenzie River Valley; southward into the Canadian provinces of British Columbia, Alberta, and Saskatchewan as well as the Northwestern United States.