The Southern Rocky Mountains Wolf (Canis lupus youngi), also known as the Southern Rockies Wolf, the Southern Rocky Mountains Grey Wolf, the Southern Rocky Mountains Common Wolf, and the Great Basin Gray Wolf, was a subspecies

Subspecies

Subspecies in biological classification, is either a taxonomic rank subordinate to species, ora taxonomic unit in that rank . A subspecies cannot be recognized in isolation: a species will either be recognized as having no subspecies at all or two or more, never just one...

 of the gray wolf

Gray Wolf

The gray wolf , also known as the wolf, is the largest extant wild member of the Canidae family...

, Canis lupus, that used to roam in the regions in and around Nevada

Nevada

Nevada is a state in the western, mountain west, and southwestern regions of the United States. With an area of and a population of about 2.7 million, it is the 7th-largest and 35th-most populous state. Over two-thirds of Nevada's people live in the Las Vegas metropolitan area, which contains its...

, Arizona

Arizona

Arizona ; is a state located in the southwestern region of the United States. It is also part of the western United States and the mountain west. The capital and largest city is Phoenix...

, Utah

Utah

Utah is a state in the Western United States. It was the 45th state to join the Union, on January 4, 1896. Approximately 80% of Utah's 2,763,885 people live along the Wasatch Front, centering on Salt Lake City. This leaves vast expanses of the state nearly uninhabited, making the population the...

, and Colorado

Colorado

Colorado is a U.S. state that encompasses much of the Rocky Mountains as well as the northeastern portion of the Colorado Plateau and the western edge of the Great Plains...

. The subspecies was named after Stanley P. Young. It became extinct in 1935.

Description

The Southern Rocky Mountains Wolf was a medium-size wolf that weighed around 90 lbs on average. It is considered to have been the "second largest wolf in the United States". The coloring of the subspecies tended toward black, with lighter areas on the edges of its fur and white in various small patches.

Range

Its primary range type included "coniferous forests, woodlands, and adjacent grasslands", which was all included in the states that it used to roam.